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Case Study Questions Class 12 Physics

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CBSE will ask two Case Study Questions in the CBSE class 12 Physics questions paper. Question numbers 15 and 16 are case-based questions where 5 MCQs will be asked based on a paragraph. Each theme will have five questions and students will have a choice to attempt any four of them. You can download CBSE Class 12 Physics case study questions from the myCBSEguide App and our free student dashboard .

You can Score High

CBSE class 12 Physics question paper will carry questions for 70 marks. Certainly, the question paper is a bit easier this year. It is because the syllabus is already reduced and there are more internal choices. Besides this, the case study questions are a plus to winning the game with good marks.

In simple words, all circumstances are in favour of the sincere students who are working hard to score high this year. Although it has been a difficult time for students as they were not getting the personal attention of the teachers. We know that online classes have their own limits, but we still expect better scores, especially from students who are putting extra effort into their studies.

Class 12 Physics Case Study Questions

CBSE class 12 Physics question paper will have case study questions too. These case-based questions will be objective type in nature. So, class 12 Physics students must prepare themselves for such questions. First of all, you should study NCERT Textbooks line by line and then you should practice as many questions as possible.

Case Study Syllabus

We know that CBSE has reduced the syllabus. Hence, practice only relevant questions. don’t waste time on case study questions from deleted portion. It is of no use. You can download the latest class 12 Physics case study questions from the myCBSEguide App.

Physics Case Studies

Class 12 Physics has many chapters but all chapters are not important for case studies. As we know case studies are not exactly given from NCERT books but these may be extracted from some newspaper articles, magazines, journals or other books. So, it is very much important that you are studying only the most relevant case studies. Here, the myCBSEguide app helps you a lot. We have case study questions that are prepared by a team of expert teachers. These experts exactly know what types of questions can come in exams.

Case Study Questions

There are a number of study apps available over the internet. But if you are a CBSE student and willing to get an app for the CBSE curriculum, you have very limited options. And if you want an app that is specifically designed for CBSE students, your search will definitely end on finding myCBSEguide. Case study questions are the latest updates in CBSE syllabus. It is exclusively available in the myCBSEguide app.

Here are some example questions. For more questions, you can download the myCBSEguide App.

Physics Case Study -1

Read  the following source and answer any four out of the following questions: Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. There are two types of charges positive and negative charges. Also, like charges repel each other whereas unlike charges attract each other.

• -3.2  × ×  10 -18  C
• 3.2  × ×  10  18  C
• -3.2  × ×  10 -17  C
• 3.2  × ×  10  -17   C
• -1.6  × ×  10 -18  C
• 1.6  × ×  10  -18  C
• 2.6  × ×  10 -18  C
• 1.6  × ×  10 -21  C
• 9.1  × ×  10 -31  kg
• 9.1  × ×  10 -31  g
• 1.6  × ×  10 -19  kg
• 1.6  × ×  10 -19  g
• there is only a positive charge in the body
• there is positive as well as negative charge in the body but the positive charge is more than the negative charge
• there is equally positive and negative charge in the body but the positive charge lies in the outer regions
• the negative charge is displaced from its position
• valence electrons only
• electrons of inner shells
• both valence electrons and electrons of the inner shell.
• none of the above

Physics Case Study -2

Read the following source and answer any four out of the following questions: Resistance is a measure of the opposition to current flow in an electrical circuit. Resistance is measured in ohms. Also, Resistivity is the electrical resistance of a conductor of unit cross-sectional area, and unit length. … A characteristic property of each material, resistivity is useful in comparing various materials on the basis of their ability to conduct electric currents.

• nature of material
• temperature
• dimensions of material
• cross-sectional area
• length of wire
• wire’s nature
• all of the above
• more resistance
• less resistance
• same resistance

Physics Case Study -3

Read the source given below and answer any four out of the following questions: The Bohr model of the atom was proposed by Neil Bohr in 1915. It came into existence with the modification of Rutherford’s model of an atom. Rutherford’s model introduced the nuclear model of an atom, in which he explained that a nucleus (positively charged) is surrounded by negatively charged electrons.

• The energy of the electrons in the orbit is quantized
• The electron in the orbit nearest the nucleus has the lowest energy
• Electrons revolve in different orbits around the nucleus
• The position and velocity of the electrons in the orbit cannot be determined simultaneously
• Single proton
• Multiple electrons
• emitted only
• absorbed only
• both (a) and (b)
• none of these
•  It must emit a continuous spectrum
•  It loses its energy
• Gaining its energy
• A discrete spectrum
• dequantized

Physics Case Study & myCBSEguide App

We at myCBSEguide provide the best case study questions for CBSE class 12 Physics. We have Physics case study questions for every chapter in 12th class Physics. Students can access the Physics case study questions with answers on the myCBSEguide App or on the student dashboard . Here are some features that make myCBSEguide the best learning app for CBSE students:

• Updated syllabus
• Up to date question bank
• Model papers and 10-year questions
• NCERT and Exemplar sulutions
• Best quality learning videos
• Detailed revision notes

12 Physics Question Paper Design

Here is the question paper design for CBSE class 12 Physics. It shows the typology of the questions and their weightage in CBSE board exams.

QUESTION PAPER DESIGN Theory (Class: 12)

Maximum Marks: 70 Duration: 3 hrs

Note:  The above template is only a sample. Suitable internal variations may be made for generating similar templates keeping the overall weightage to different forms of questions and typology of questions the same.

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NCERT Books and Solutions for all classes

Class 12 Physics Case Study Questions

Please refer to the chapter-wise Class 12 Physics Case Study Questions given below. These questions are expected to come in your class 12 Physics board exams. Our expert teachers have developed these Case Study questions and answers based on the latest examination guidelines and updated syllabus issued by CBSE, NCERT, and KVS. These will help you to understand all topics too and bet way to write answers in your exams. Revise these solved problems prior to your exams to score better marks in Class 12 exams.

Case Study Questions Class 12 Physics

Please click on the links below to access free important Case Study questions and answers for Grade 12 Physics. All solved questions have been designed based on the latest pattern of questions asked in recent examinations.

Chapter-wise Solved Case Study Questions for Class 12 Physics

Class 12 students should go through important Case Study problems for Physics before the exams. This will help them to understand the type of Case Study questions that can be asked in Grade 12 Physics examinations. Our expert faculty for standard 12 Physics have designed these questions based on the trend of questions that have been asked in last year’s exams. The solutions have been designed in a manner to help the grade 12 students understand the concepts and also easy to learn solutions.

You can click on the chapter-wise Case Study links given above and read the Class 12th Physics Case Study questions and answers provided by us. If you face any issues or have any questions please put your questions in the comments section below. Our teachers will be happy to provide you answers.

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CBSE 12th Standard Physics Subject Case Study Questions With Solution 2021 Part - II

By QB365 on 21 May, 2021

QB365 Provides the updated CASE Study Questions for Class 12 , and also provide the detail solution for each and every case study questions . Case study questions are latest updated question pattern from NCERT, QB365 will helps to get  more marks in Exams

QB365 - Question Bank Software

12th Standard CBSE

Final Semester - June 2015

(ii) Extra electrons on this particular oil drop (given the presently known charge of the electron) are

(iii) A negatively charged oil drop is prevented from falling under gravity by applying a vertical electric field 100 V m -1 .If the mass of the drop is 1.6 X 10 -3 g, the number of electrons carried by the drop is (g= 10 m s -2 )

(iv) The important conclusion given by Millikan's experiment about the charge is

(v) If in Millikan's oil drop experiment, charges on drops are found to be  \(8 \mu \mathrm{C}, 12 \mu \mathrm{C}, 20 \mu \mathrm{C}\)  then quanta of charge is

This energy possessed by a system of charges by virtue of their positions. When two like charges lie infinite distance apart, their potential energy is zero because no work has to be done in moving one charge at infinite distance from the other. In carrying a charge q from point A to point B, work done  \(W=q\left(V_{A}-V_{B}\right)\) . This work may appear as change in KE/PE of the charge. The potential energy of two charges q 1 and q 2 at a distance r in air is  \(\frac{q_{1} q_{2}}{4 \pi \varepsilon_{0} r}\) . It is measured in joule. It may be positive, negative or zero depending on the signs of q l and q 2 . (i) Calculate work done in separating two electrons form a distance of 1m to 2m in air, where e is electric charge and k is electrostatic force constant.

(ii) Four equal charges q each are placed at four corners of a square of side a each. Work done in carrying a charge -q from its centre to infinity is

(iii) Two points A and B are located in diametrically opposite directions of a point charge of +2  \(\mu \mathrm{C}\)  at distances 2 m and 1 m respectively from it. The potential difference between A and B is 

(iv) Two point charges A = +3 nC and B = +1 nC are placed 5 ern apart in air. The work done to move charge B towards A by 1 cm is

(v) A charge Q is placed at the origin. The electric potential due to this charge at a given point in space is V. The work done by an external force in bringing another charge q from infinity up to the point is

Metals have a large number of free electrons nearly 10 28  per cubic metre. In the absence of electric field, average  terminal speed of the electrons in random motion at room temperature is of the order of 10 5 m s -1 When a potential difference V is applied across the two ends of a given conductor, the free electrons in the conductor experiences a force and are accelerated towards the positive end of the conductor. On their way, they suffer frequent collisions with the ions/atoms of the conductor and lose their gained kinetic energy. After each collision, the free electrons are again accelerated due to electric field, towards the positive end of the conductor and lose their gained kinetic energy in the next collision with the ions/atoms of the conductor. The average speed of the free electrons with which they drift towards the positive end of the conductor under the effect of applied electric field is called drift speed of the electrons. (i) Magnitude of drift velocity per unit electric field is

(ii) The drift speed of the electrons depends on

(iii) We are able to obtain fairly large currents in a conductor because

(iv) Drift speed of electrons in a conductor is very small i.e., i = 10 -4 m s -1 . The Electric bulb glows immediately. When the switch is closed because

(v) The number density offree electrons in a copper conductor is 8.5 x 10 28 m -3 . How long does an electron take to drift from one end of a wire 3.0 m long to its other end? The area of cross-section of the wire is 2.0 x 10 -6 m 2 and it is carrying a current of 3.0 A.

(ii) Radius of particle in second magnetic field B o is

(iii) Which of the following will trace a circular trajectory wit largest radius?

(iv) Mass of the particle in terms q, B o,  B,r and E is

(v) The particle comes out of velocity selector along a straight line, because

When the atomic dipoles are aligned partially or fully, there is a net magnetic moment in the direction of the field in any small volume of the material. The actual magnetic field inside material placed in magnetic field is the sum of the applied magnetic field and the magnetic field due to magnetisation. This field is called magnetic intensity (H). \(H=\frac{B}{\mu_{0}}-M\) where M is the magnetisation of the material, llo is the permittivity of vacuum and B is the total magnetic field. The measure that tells us how a magnetic material responds to an external field is given by a dimensionless quantity is appropriately called the magnetic susceptibility: for a certain class of magnetic materials, intensity of magnetisation is directly proportional to the magnetic intensity. (i) Magnetization of a sample is

(ii) Identify the wrongly matched quantity and unit pair.

(iii) A bar magnet has length- 3 cm, cross-sectional area 2 cm 2  and magnetic moment 3 A m 2 . The intensity of magnetisation of bar magnet is

(iv) A solenoid has core of a material with relative permeability 500 and its windings carry a current of 1 A. The number of turns of the solenoid is 500 per metre. The magnetization of the material is nearly

(v) The relative permeability of iron is 6000. Its magnetic susceptibility is

(ii) Two similar circular loops carry equal currents in the same direction. On moving the coils further apart, the electric current will

(iii) A closed iron ring is held horizontally and a bar magnet is dropped through the ring with its length along the axis of the ring. The acceleration of the falling magnet is

(iv) Whenever there is a relative motion between a coil and a magnet, the magnitude of induced emf set up in the coil does not depend upon the

(v) A coil of metal wire is kept stationary in a non-uniform magnetic field

A transformer is essentially an a.c. device. It cannot work on d.c. It changes alternating voltages or currents. It does not affect the frequency of a.c. It is based on the phenomenon of mutual induction. A transformer essentially consists of two coils of insulated copper wire having different number of turns and wound on the same soft iron core.  The number of turns in the primary and secondary coils of an ideal transformer are 2000 and 50 respectively. The primary coil is connected to a main supply of 120 V and secondary coil is connected to a bulb of resistance  \(0.6 \Omega\) (i) The value of voltage across the secondary coil is

(ii) The value of current in the bulb is

(iii) The value of current in primary coil is

(iv) Power in primary coil is

(v) Power in secondary coil is

Electrons oscillating in a circuit give rise to radiowaves. A transmitting antenna radiates most effectively the radiowaves of wavelength equal to the size of the antenna. The infrared waves incident on a substance set into oscillation all its electrons, atoms and molecules. This increases the internal energy and hence the temperature of the substance. (i) If v g , v x and vm are the speeds of gamma rays, X-rays and microwaves respectively in vacuum, then

(ii) Which of the following will deflect in electric field?

(iii) \(\Upsilon\) -rays are detected by

(iv) The frequency of electromagnetic wave, which best suited to observe a particle of radius 3 x 10 -4 cm is the order of

(v) We consider the radiation emitted by the human body. Which one of the following statements is true?

An astronomical telescope is an optical instrument which is used for observing distinct images of heavenly bodies libe stars, planets etc. It consists of two lenses. In normal adjustment of telescope, the final image is formed at infinity. Magnifying power of an astronomical telescope in normal adjustment is defined as the ratio of the angle subtended at the eye by the angle subtended at the eye by the final image to the angle subtended at the eye, by the object directly, when the final image and the object both lie at infinite distance from the eye. It is given by, \(m=\frac{f_{0}}{f_{e}}\)   To increase magnifying power of an astronomical telescope in normal adjustment, focal length of objective lens should be large and focal length of eye lens should be small. (i) An astronomical telescope of magnifying power 7 consists of the two thin lenses 40 cm apart, in normal adjustment. The focal lengths of the lenses are

(ii) An astronomical telescope has a magnifying power of 10. In normal adjustment, distance between the objective and eye piece is 22 cm. The focal length of objective lens is

(iii) In astronomical telescope compare to eye piece, objective lens has

(iv) To see stars, use

(v) For large magnifying power of astronomical telescope

(ii) Find the ratio of the maximum to minimum intensity observed on  \(S_{c} \text { if } z=\frac{\lambda D}{d}\)

(iv) In the case of light waves from two coherent sources S 1 and S 2 . there will be constructive interference at an arbitrary point P, if the path difference S 1 P - S 2 P is

(v) Two monochromatic light waves of amplitudes 3A and 2A interfering at a point have a phase difference of 60°. The intensity at that point will be proportional to

If we allow radiations of a fixed frequency to fall on plate and the accelerating potential difference between the two electrodes is kept fixed, then the photoelectric current is found to increase linearly with the intensity of incident radiation. Here, radiation pressure is P = \(\left(\frac{1+e}{C}\right) I\) . As, atmosphere pressure at sea level is 10 5 Pa. If the intensity of light of a given wavelength, is increased, there is an increase in the number of photons incident on a given area in a given time. But the energy of each photon remain the same. (i) The number of photons hitting the cone second

(ii) A radiation of energy E falls normally on a perfect reflecting surface. The momentum transferred to the surface is

(iii) Which one is correct?

(iv) The incident intensity on a horizontal surface at sea level from the Sun is about 1 k W m -2 . Assuming that 50% of this intensity is reflected and 50% is absorbed, determine the radiation pressure on this horizontal surface.

(v) Find the ratio of radiation pressure to atmospheric pressure P 0  about 1 x 10 5 Pa at sea level.

(ii) Gold foil used in Geiger-Marsden experiment is about 10 -8 m thick. This ensures

(iii) In Geiger-Marsden scattering experiment, the trajectory traced by an a-particle depends on

(iv) In the Geiger-Marsden scatteririg experiment, in case of head-on collision, the impact parameter should be

(v) The fact only a small fraction of the number of incident particles rebound back in Rutherford scattering indicates that

(ii) The wavelength of the radiation involved in transition II is

(iii) Which transition will occur when a hydrogen atom is irradiated with radiation of wavelength 103 nm?

(iv) The electron in a hydrogen atom makes a transition from n = n 1 to n = n 2 state. The time period of the electron in the initial state is eight times that in the final state. The possible values of n 1 and n 2 are

(v) The Balmer series for the H-atom can be observed

Neutrons and protons are identical particle in the sense that their masses are nearly the same and the force, called nuclear force, does into distinguish them. Nuclear force is the strongest force. Stability of nucleus is determined by the neutron proton ratio or mass defect or packing fraction. Shape of nucleus is calculated by quadrupole moment and spin of nucleus depends on even or odd mass number. Volume of nucleus depends on the mass number. Whole mass of the atom (nearly 99%) is centred at the nucleus. (i) The correct statements about the nuclear force is/are

(ii) The range of nuclear force is the order of

(iii) A force between two protons is same as the force between proton and neutron. The nature of the force is

(iv) Two protons are kept at a separation of 40 \(\dot A\) . Fn is the nuclear force and F e is the electrostatic force between them. Then

(v) All the nucleons in an atom are held by

(v) With an ac input from 50 Hz power line, the ripple frequency is

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Cbse 12th standard physics subject case study questions with solution 2021 part - ii answer keys.

(i) (a):  As,  \(q E=m g \Rightarrow q=\frac{1.08 \times 10^{-14} \times 9.8}{1.68 \times 10^{5}}\) \(=6.4 \times 10^{-19} \mathrm{C}\) (ii) (a):  \(q=n e \text { or } \Rightarrow n=\frac{6.4 \times 10^{-19}}{1.6 \times 10^{-19}}=4\) (iii) (c) : For the drop to be stationary, Force on the drop due to electric field = Weight of the drop qE=mg \(q=\frac{m g}{E}=\frac{1.6 \times 10^{-6} \times 10}{100}=1.6 \times 10^{-7} \mathrm{C}\) Number of electrons carried by the drop is \(n=\frac{q}{e}=\frac{1.6 \times 10^{-7} \mathrm{C}}{1.6 \times 10^{-19} \mathrm{C}}=10^{12}\) (iv) (c) (v) (d): Millikan's experiment confirmed that the charges are quantized, i.e., charges are small integer multiples of the base value which is charge on electron. The charges on the drops are found to be multiple of 4. Hence, the quanta of charge is 4 \(\mu \) C.

(i) (c):  \(W=(\text { P.E. })_{\text {final }}-(\text { P.E. })_{\text {initial }}\) \(=\frac{k e^{2}}{2}-\frac{k e^{2}}{1}=\frac{-k e^{2}}{2}\) (ii) (b) : Potential at the centre of the square due to four equal charges q at four corners  \(V=\frac{4 q}{4 \pi \varepsilon_{0}(a \sqrt{2}) / 2}=\frac{\sqrt{2} q}{\pi \varepsilon_{0} a}\) \(W_{0 \rightarrow \infty}=-W_{\infty \rightarrow 0}=-(-q) V=\frac{\sqrt{2} q^{2}}{\pi \varepsilon_{0} a}\) (iii) (c): Here,  \(q=2 \mu \mathrm{C}=2 \times 10^{-6} \mathrm{C}, r_{A}=2 \mathrm{~m}, r_{B}=1 \mathrm{~m}\) \(\therefore \ V_{A}-V_{B}=\frac{q}{4 \pi \varepsilon_{0}}\left[\frac{1}{r_{A}}-\frac{1}{r_{B}}\right]\) \(=2 \times 10^{-6} \times 9 \times 10^{9}\left[\frac{1}{2}-\frac{1}{1}\right] \mathrm{V}=-9 \times 10^{3} \mathrm{~V}\) (iv)(b) : Required work done = Change in potential energy of the system \(W=U_{f}-U_{i}=k \frac{q_{1} q_{2}}{r_{f}}-k \frac{q_{1} q_{2}}{r_{i}}=k q_{1} q_{2}\left[\frac{1}{r_{f}}-\frac{1}{r_{i}}\right]\) \(\therefore \ W=\left(9 \times 10^{9}\right)\left(3 \times 10^{-9} \times 1 \times 10^{-9}\right)\)   \(\times\left[\frac{1}{4 \times 10^{-2}}-\frac{1}{5 \times 10^{-2}}\right]\) \(=27 \times 10^{-7} \times(0.05)=1.35 \times 10^{-7} \mathrm{~J}\) (v) (b)

(i) (d): Mobility is defined as the magnitude of drift velocity per unit electric field Mobility,  \(\mu=\frac{\left|v_{d}\right|}{E}\) (ii) (c): Drift velocity  \(v_{d}=\frac{I}{n e A}\) where the symbols have their usual meanings (iii) (b): I = neAv d v d is of order offew m S -I , e = 1.6 x 10 -19 C, A is of the order of mm 2 , so a large I is due to a large value of n in conductors. (iv) (c): When we close the circuit, an electric field is established instantly with the speed of electromagnetic wave which causes electrons to drift at every portion of the circuit, due to which the current is set up in the entire circuit instantly. The current which is set up does not wait for electrons to flow from one end of the conductor to another. Thus, the electric bulb glows immediately when switch is closed. (v) (b): Here, Number density of free electrons, n = 8.5 x 10 28 m -3 Area of cross-section of a wire, A = 2.0 x 10 -6 m 2 Length of the wire, 1= 3.0 m Current, I = 3.0 A The drift velocity of an electron is  \(v_{d}=\frac{I}{n e A}\)  ...(i) The time taken by the electron to drift from one end to other end of the wire is \(t=\frac{l}{v_{d}}=\frac{\ln e A}{I}\) \(=\frac{(3.0 \mathrm{~m})\left(8.5 \times 10^{28} \mathrm{~m}^{-3}\right)\left(1.6 \times 10^{-19} \mathrm{C}\right)\left(2.0 \times 10^{-6} \mathrm{~m}^{2}\right)}{(3.0 \mathrm{~A})}\) = 2.7 x 10 4 s

(i) (c): In mass spectrometer, the ions are sorted out by accelerating them through electric and magnetic field. (ii) (c):  As  \(\frac{m v^{2}}{r}=q v B_{0} \therefore r=\frac{m v}{q B_{0}}\) (iii) (b): As radius  \(r \propto \frac{m}{q}\) \(\therefore\)  r will be maximum for  \(\alpha\)  - particle. (iv) (b) : Here,  \(r=\frac{m v}{q B_{0}} \text { or } m=\frac{r q B_{0}}{v}\) As  \(v=\frac{E}{B}, \therefore m=\frac{q B_{0} B r}{E}\) (v) (c): From the relation v = E/B, it is clear electric and magnetic force balance each other.

(i) (b) (ii) (d): Magnetic permeability - Henry m -1 (iii) (d): Given, L= 3 cm, A = 2 cm 2 , M = 3 A m 2 .Intensity of magnetisation  \(=\frac{M}{l A}=\frac{3}{3 \times 10^{-2} \times 2 \times 10^{-4}}\) \(=\frac{1}{2 \times 10^{-6}}=0.5 \times 10^{6}=5 \times 10^{5} \mathrm{~A} / \mathrm{m}\) (iv) (b) : Here, n = 500 turns/m \(I=1 \mathrm{~A}, \mu_{-}=500\) Magnetic intensity  \(H=n I=500 \mathrm{~m}^{-1} \times 1 \mathrm{~A}=500 \mathrm{~A} \mathrm{~m}^{-1}\) As  \(\mu_{r}=1+\chi \quad \text { or } \chi=\left(\mu_{r}-1\right)\) Magnetisation, M = XH \(=\left(\mu_{r}-1\right) H=(500-1) \times 500 \mathrm{~A} \mathrm{~m}^{-1}\) \(=2.495 \times 10^{5} \mathrm{~A} \mathrm{~m}^{-1} \approx 2.5 \times 10^{5} \mathrm{~A} \mathrm{~m}^{-1}\) (v) (a) : Relative permeability of iron  \(\mu_{r}=6000\) Magnetic susceptibility  \(\chi_{m}=\mu_{r}-1=5999\)

(i) (d) : More rapid is the movement of bar magnet, more is the deflection observed in the galvanometer (ii) (c) : Two circular loops carrying current in the same direction will attract each other. If they are now separated, induced currents will try to keep status quo, by increasing the current in both the coils. (iii) (b): Acceleration of the magnet will not be equal to g. It will be less than g. This is because, as the magnet falls, amount of magnetic flux linked with the ring changes. An induced emf is developed in the ring which opposes the downward motion of the magnet. (iv) (c) : The magnitude of induced emf set up in the coil does not depend upon the resistance of the coil whereas induced current set up in the coil depend upon the resistance of the coil. (v) (d) : As long as a coil of metal is kept stationary in a magnetic field, even if it is non-uniform, unless it is changing with respect to time, there will be no induced emf or current in the coil.

(i) (c) : As  \(\frac{E_{s}}{E_{p}}=\frac{n_{s}}{n_{p}} \Rightarrow E_{s}=E_{p} \cdot \frac{n_{s}}{n_{p}}\) \(=\frac{120 \times 50}{2000}=3 \mathrm{~V}\) (ii) (d) :  \(I_{s}=\frac{E_{s}}{R} \Rightarrow I_{s}=\frac{3}{0.6}=5 \mathrm{~A}\) (iii) (a) : As  \(\frac{I_{p}}{I_{s}}=\frac{E_{s}}{E_{p}}\) \(\Rightarrow I_{p}=\frac{E_{s}}{E_{p}} \times I_{s}=\frac{\ 3}{120} \times 5=0.125 \mathrm{~A}\) (iv) (d) : Power in primary  \(P_{p}=E_{p} \times I_{p}=120 \times 0.125\) = I5W (v) (a) : Power in secondary coil  \(P_{s}=E_{s} \times I_{s}=3 \times 5\) = 15W

(i) (d) : All electromagnetic waves travel in vacuum with the same speed. (ii) (c) : Cathode rays (beam of electrons) get deflected in an electric field. (iii) (c) : \(\Upsilon\) -rays are detected by ionization chamber. (iv) (b) : Size of particle  \(=\lambda=\frac{c}{v}\) \(v=\frac{c}{\lambda}=\frac{3 \times 10^{10} \mathrm{~cm} \mathrm{~s}^{-1}}{3 \times 10^{-4} \mathrm{~cm}}=3 \times 10^{14} \mathrm{~Hz}\) (v) (a) : Every body at a temperature T > 0 K emits radiation in the infrared region.

(i) (a) :   \(m=\frac{f_{o}}{f_{e}}=7\) \(f_{o}=7 f_{e}\) In normal adjustment, distance between the lenses \(f_{o}+f_{e}=40 \) \(7 f_{0}+f_{e}=40 \Rightarrow f_{e}=\frac{40}{8}=5 \mathrm{~cm} \) \(f_{o}=7 f_{e}=7 \times 5=35 \mathrm{~cm}\) (ii) (d) :   \(m=-10 ; L=22 \mathrm{~cm}\) \(\text { As } m=\frac{-f_{o}}{f_{e}} \Rightarrow-10=-\frac{f_{o}}{f_{e}}\) \(f_{o}=10 f_{\mathrm{e}} \) \(\text { As } L=f_{o}+f_{e} \) \(22=10 f_{e}+f_{e}=11 f_{e} \) \(\text { or } f_{e}=\frac{22}{11}=2 \mathrm{~cm}\) \(f_{o}=10 f_{e}=20 \mathrm{~cm}\) (iii) (d) : Objective lens has larger focal length than eye-piece. (iv) (d): Astronomial telescope is used to see stars, sun etc. (v) (c) :f 0 >>f e

(i) (b) :   \(\text { As } z=\frac{\lambda D}{2 d}\) \(\text { At } S_{4}: \frac{\Delta x}{d}=\frac{z}{D}\) \(\Rightarrow \Delta x=\frac{\lambda D}{2 d} \frac{d}{d}=\frac{\lambda}{2}\) (ii) (c) :  \(z=\frac{\lambda D}{d}\) \(\Delta x \text { at } S_{4}: \Delta x=\frac{\lambda D}{d} \frac{d}{d}=\lambda\) Hence, maxima at S 4 as well as S 3 ' Resultant intensity at S 4  I = 4I 0 \(\therefore \quad \frac{I_{\max }}{I_{\min }}=\frac{\left[\left(4 I_{0}\right)^{1 / 2}+4\left(4 I_{0}\right)^{1 / 2}\right]^{2}}{\left[\left(4 I_{0}\right)^{1 / 2}-\left(4 I_{0}\right)^{1 / 2}\right]^{2}}=\infty\) (iii) (a) : When the screen is placed perpendicular to the line joining the 'sources, the fringes will be concentric circles. (iv) (b) : Constructive interference occurs when the path difference (S 1 P - S 2 P) is an integral multiple of \(\lambda\) .or S 1 P - S 2 P = n \(\lambda\) , where n = 0,1,2,3, ..... (v) (d) : Here, A 1 = 3A, A 2 = 2A and \(\varphi\) = 60° The resultant amplitude at a point is \(R =\sqrt{A_{1}^{2}+A_{2}^{2}+2 A_{1} A_{2} \cos \phi} \) \(=\sqrt{(3 A)^{2}+(2 A)^{2}+2 \times 3 A \times 2 A \times \cos 60^{\circ}} \) \(=\sqrt{9 A^{2}+4 A^{2}+6 A^{2}}=A \sqrt{19}\) As, Intensity \(\infty\)  (Amplituder) 2  Therefore, intensity at the same point is \(I \propto 19 A^{2}\)

(i) (d) : Rutherford's atom had a positively charged centre and electrons were revolving outside it.It is also called the planetary model of the atom as in option (d). (ii) (d) : As the gold foil is very thin, it can be assumed that a-particles will suffer not more than one scattering during their passage through it. Therefore, computation of the trajectory of an a-particle scattered by a single nucleus is enough. (iii) (c) : Trajectory of a-particles depends on impact parameter which is the perpendicular distance of the initial velocity vector of the a particles from the centre of the nucleus. For small impact parameter a particle close to the nucleus suffers larger scattering. (iv) (b) : At minimum impact parameter, a particles rebound back ( \(\theta\)  = \(\pi\) ) and suffers large scattering. (v) (d) : In case of head-on-collision, the impact parameter is minimum and the a-particle rebounds back. So, the fact that only a small fraction of the number of incident particles rebound back indicates that the number of a-particles undergoing head-on collision is small. This in turn implies that the mass of the atom is concentrated in a small volume. Hence, option (a) and (b) are correct.

(i) (d) : For Balmer series, n 1 = 2; n 2 = 3, 4, ...                                           (lower) (higher) Therefore, in transition (VI), photon of Balmer series is absorbed. (ii) (c) : In transition II \(E_{2}=-3.4 \mathrm{eV}, E_{4}=-0.85 \mathrm{eV}\) \(\Delta E=2.55 \mathrm{eV} \Rightarrow \Delta E=\frac{h c}{\lambda} \Rightarrow \lambda=\frac{h c}{\Delta E}=487 \mathrm{nm}\) (iii) (d) : Wavelength of radiation = 1030  \(\dot A\) \(\Delta E=\frac{12400}{1030 \dot A}=12.0 \mathrm{eV}\) So, difference of energy should be 12.0 eV (approx.) Hence for n 1 = 1 to n 2 = 3. \(E_{n_{3}}-E_{n_{1}}=-1.51 \mathrm{eV}-(-13.6 \mathrm{eV}) \approx 12 \mathrm{eV}\) Therefore, transition V will occur. (iv) (a) :  \(T^{2} \propto r^{3} \text { and } r \propto n^{2} \Rightarrow T^{2} \propto n^{6} \Rightarrow T \propto n^{3}\) \(\frac{T_{1}}{T_{2}}=\left(\frac{n_{1}}{n_{2}}\right)^{3} \Rightarrow 8=\left(\frac{n_{1}}{n_{2}}\right)^{3} \text { or } \frac{n_{1}}{n_{2}}=2\) (v) (b)

(i) (d) : All options are basic properties of nuclear forces. So, all options are correct. (ii) (d) : The nuclear force is of short range and the range of nuclear force is the order of 1.4 x 10 -15 m Now, volume  \(\propto R^{3} \propto A\) (iii) (d) (iv) (a) : Nuclear force is much stronger than the electrostatic force inside the nucleus i.e., at distances of the order of fermi. At 40 \(\dot A\) , nuclear force is ineffective and only electrostatic force of repulsion is present.This is very high at this distance because nuclear force is not acting now and the gravitational force is very feeble.F nuclear << F electrostatiinc this case. (v) (a).

(i) (a) :The rms value of the output voltage at the load resistance  \(V_{\mathrm{rms}}=\frac{V_{0}}{\sqrt{2}}\) (ii) (d) (iii) (a) (iv) (c) : The given circuit works as a half wave rectifier. In this circuit, we will get current through R when p-n junction is forward biased and no current when p-n junction is reverse biased. Thus the current (I) through resistor (R) will be shown in option (c). (v) (c)

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Case Study Questions for Class 12 Physics Chapter 14 Semiconductor Electronics

• Last modified on: 2 years ago
• Reading Time: 8 Minutes

Question 1:

Light Emitting Diode: It is a heavily doped p-n junction which under forward bias emits spontaneous radiation. The diode is encapsulated with a transparent cover so that emitted light can come out. When the diode is forward biased, electrons are sent from n → p (where they are minority carriers) and holes are sent from p → n (where they are minority carriers). At the junction boundary, the concentration of minority carriers increases as compared to the equilibrium concentration (i.e., when there is no bias). Thus at the junction boundary on either side of the junction, excess minority carriers are there which recombine with majority carriers near the junction. On recombination, the energy is released in the form of photons. Photons with energy equal to or slightly less than the band gap are emitted. When the forward current of the diode is small, the intensity of light emitted is small. As the forward current increases, intensity of light increases and reaches a maximum. Further increase in the forward current results in decrease of light intensity. LED’s are biased such that the light emitting efficiency is maximum. The V-I characteristics of a LED is similar to that of a Si junction diode. But, the threshold voltages are much higher and slightly different for each colour. The reverse breakdown voltages of LED’s are very low, typically around 5 V. So care should be taken that high reverse voltages do not appear across them. LED’s that can emit red, yellow, orange, green and blue light are commercially available.

Read the above case/passage and answer the following questions:

(i) LED is a: (a) lightly doped p-n junction diode. (b) heavily doped p-n junction diode. (c) moderately doped p-n junction diode. (d) two back to back p-n junction diode.

(ii) LED emits light: (a) when reversed biased. (b) when forward biased. (c) when forward or reverse biased. (d) when heated.

(iii) During recombination at the junction, emitted photons have: ( a) energy equal to or slightly less than the band gap. (b) energy greater than the band gap. (c) energy which has no relation with the band gap. (d) very low energy compared to band gap.

(iv) Threshold voltage of LED is: (a) lower compared to other p-n junction diodes and slightly different for each colour. (b) lower compared to other p-n junction diodes and same for all colours. (c) higher compared to other p-n junction diodes and same for all colours. (d) higher compared to other p-n junction diodes and slightly different for each colour.

(v) The reverse breakdown voltages of LED’s are: (a) very low and typically around 0.5 V. (b) very high and typically around 50 V. (c) very low and typically around 5 V. (d) very low and typically around 0.05 V.

Case Study Question for Class 12 Physics Chapter 7 Alternating Current

Last modified on:2 years agoReading Time:4MinutesCase Study Question for Class 12 Physics Chapter 7 Alternating Current Question 1: Read the para given below and answer the questions that follow: Resonant Series LCR Circuit. When the frequency of ac supply is such that the inductive reactance and capacitive reactance become equal, the impedance of the series LCR…

Case Study Question for Class 12 Physics Chapter 6 Electromagnetic Induction

Last modified on:2 years agoReading Time:4MinutesCase Study Question for Class 12 Physics Chapter 6 Electromagnetic Induction Question 1: Read the para given below and answer the questions that follow: Self Induction. When a current I flows through a coil, flux linked with it is φ = LI, where L is a constant known as self inductance…

Case Study Questions for Class 12 Physics Chapter 5 Magnetism and Matter

Last modified on:2 years agoReading Time:9MinutesCase Study Questions for Class 12 Physics Chapter 5 Magnetism and Matter Case Study Question 1: Read the following case/passage and answer the following questions: Elements of the Earth’s Magnetic Field. The earth’s magnetic field at a point on its surface is usually characterized by three quantities: (a) declination (b) inclination…

Case Study Questions for Class 12 Physics Chapter 10 Wave Optics

Last modified on:2 years agoReading Time:7Minutes Case Study Questions for Class 12 Physics Chapter 10 Wave Optics Question 1: Diffraction of Light:A and B went to purchase a ticket of a music programme. But unfortunately only one ticket was left. They purchased the single ticket and decided that A would be in the hall during the…

Case Study Questions for Class 12 Physics Chapter 8 Electromagnetic Waves

Last modified on:2 years agoReading Time:9MinutesCase Study Questions for Class 12 Physics Chapter 8 Electromagnetic Waves Question 1: Laser: Electromagnetic radiation is a natural phenomenon found in almost all areas of daily life, from radio waves to sunlight to x-rays. Laser radiation – like all light – is also a form of electromagnetic radiation. Electromagnetic radiation…

Last modified on:2 years agoReading Time:8MinutesCase Study Questions for Class 12 Physics Chapter 14 Semiconductor Electronics Question 1: Light Emitting Diode:It is a heavily doped p-n junction which under forward bias emits spontaneous radiation. The diode is encapsulated with a transparent cover so that emitted light can come out. When the diode is forward biased, electrons…

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Class 12 Physics Case Study Questions Chapter 6 Electromagnetic Induction

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In Class 12 Boards there will be Case studies and Passage Based Questions will be asked, So practice these types of questions. Study Rate is always there to help you. Free PDF Downloads of CBSE Class 12 Physics Chapter 6 Electromagnetic Induction Case Study and Passage-Based Questions with Answers were Prepared Based on the Latest Exam Pattern. Students can solve NCERT Class 12 Physics Case Study Questions Electromagnetic Induction  to know their preparation level.

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In CBSE Class 12 Physics Paper, Students will have to answer some questions based on  Assertion and Reason . There will be a few questions based on case studies and passage-based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.

Electromagnetic Induction Case Study Questions With Answers

Here, we have provided case-based/passage-based questions for Class 12 Physics  Chapter 6 Electromagnetic Induction

Case Study/Passage-Based Questions

Case Study 1: Currents can be induced not only in conducting coils but also in conducting sheets or blocks. Current is induced in solid metallic masses when the magnetic flux threading through them changes. Such currents flow in the form of irregularly shaped loops throughout the body of the metal. These currents look like eddies or whirlpools in water so they are known as eddy currents. Eddy currents have both undesirable effects and practically useful applications. For example, it causes unnecessary heating and wastage of power in electric motors, dynamos, and in the cores of transformers. (I) The working of speedometers of trains is based on

Answer: (b) eddy currents

(ii) Identify the wrong statement

Answer: (a) Eddy currents are produced in a steady magnetic field

(iii) Which of the following is the best method to reduce eddy currents?

Answer: (a) Laminating core

(iv) The direction of eddy currents is given by

Answer: (c) Lenz’s law

(v) Eddy currents can be used to heat localized tissues of the human body. This branch of medical therapy is called 

Answer: (c) Inductothermy

Case Study 2: Self Induction. When a current I flows through a coil, the flux linked with it is φ = LI, where L is a constant known as the self-inductance of the coil.

Any change in current sets up an induced emf in the coil. Thus, the self-inductance of a coil is the induced emf set up in it when the current passing through it changes at the unit rate. It is a measure of the opposition to the growth of the decay of current flowing through the coil. Also, the value of self-inductance depends on the number of turns in the solenoid, its area of cross-section, and the permeability of its core material.

(i) The inductance in a coil plays the same role as (a) inertia in mechanics (b) energy in mechanics (c) momentum in mechanics (d) force in mechanics

Answer: (a) inertia in mechanics

(ii) A current of 2.5 A flows through a coil of inductance 5 H. The magnetic flux linked with the coil is (a) 0.5 Wb (b) 12.5 Wb (c) zero (d) 2 Wb

Answer: (b) 12.5 Wb

The inductance L of a solenoid depends upon its radius R as (a) L ∝ R (b) L ∝ 1/R (c) L ∝ R 2 (d) L ∝ R 3

Answer: (c) L ∝ R2

(iv) The unit of self-inductance is

(a) Weber ampere (b) Weber -1  ampere (c) Ohm second (d) Farad

Answer: (c) Ohm second

(v) The induced emf in a coil of 10 henry inductance in which current varies from 9 A to 4 A in 0.2 second is (a) 200 V (b) 250 V (c) 300 V (d) 350 V

Answer: (b) 250 V

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• CBSE Class 12 Physics Important Questions 2024-25

CBSE Chapterwise Important Questions for Class 12 Physics with Answers PDF - Free Download

Class 12 Physics has fifteen significant chapters that focus on the important topics of this subject. These topics have been chosen to develop the conceptual foundation among the students. This foundation will help students to choose their careers in the future. To make it easier, download and solve the Important Questions for Class 12 Physics with Answers PDF for Term 2 to prepare the chapters completely. Learn how to solve such questions from the solutions and take a step ahead of the competition.

Physics is an important subject within the consortium of science subjects and also equally tough. The importance of Physics as a subject cannot be understated during the course of a student’s academic career. It is of crucial importance and absolutely imperative for any student to have strong fundamentals in Physics for students who wish to pursue a career in engineering be it mechanical, electrical or computers. Physics as a subject is very subjective and demands that students write accurate answers to questions posed to them.

Vedantu’s online platform offers students the facility to access important questions on their website with customised answers. Imp questions of Physics Class 12 chapter wise free PDF download are available for students to read, understand and assimilate in a format that is easy for them to learn.

Download CBSE Class 12 Physics Important Questions 2024-25 PDF

Also, check CBSE Class 12 Physics Important Questions for other chapters:

Chapterwise Important Questions for CBSE Class 12 Physics

CBSE Board Important Questions for Class 12 Physics with Answers PDF

Sessions in school do not generally cover all the important questions that students should concentrate on while preparing for their board exams. A comprehensive Physics important questions Class 12 PDF would work as a ready reckoner to students to be well prepared for their examinations. Without a direction, students could easily lose focus if they do not have a standard format to follow which could lead to a significant dip in their grades. Vedantu presents important questions for class 12 physics with answers PDF as a guide for students to follow. Practising the given from the imp questions of Physics Class 12 chapter wise free PDF download would help students leverage their core areas and provide an avenue to score additional marks in the exams.

Important Questions for Class 12 Physics with Answers PDF 2024-25

The following chapters mentioned below are the most important questions for Class 12 Physics with answers 2024 PDF asked in Board exam:

Electromagnetic radiation sums up to this region of the spectrum between the wavelength of 400 nm to 750 nm is called light. There are two things that we can inherently mention light from common experience. Initially, it travels with enormous speed and second, that it travels in a straight line. The path through which light travels is called a ray of light and a bundle of such rays forms a beam of light. Also, the light energy is concentrated in tiny particles which are known as corpuscles. The laws of reflection and refraction are true for all surfaces and pairs of media at the point of the incidence. In this chapter, you will understand the concepts of refraction and reflection in a detailed way.

Ray optics will deal with one of the most important principles in the area of ray optics. The corpuscular model predicted that if the ray of light is bent towards the normal then the speed of light will be greater in the second medium. Waves from one point of source spread out in all directions, while the light was seen to travel along with narrow rays. It will require the insight and experiment of Huygens, Young and Fresnel to analyze how a wave theory will explain all aspects of the behaviour of light. In this chapter, you will come to know the Huygens principle clearly and derive the laws of reflection and refraction along with the phenomenon of interference which is based on the principle of superposition.

Electronic Devices:

Devices in which a controlled flow of electrons could be collected are known as the basic building blocks of all the electronic circuits. Before the discovery of transistors in 1948, such devices are also known as vacuum tubes, had two electrodes namely anode and cathode. In a vacuum tube, the electrons are produced by a heated cathode and the controlling flow of these electrons in a vacuum is obtained by varying the voltage between different electrodes. The vacuum is required in the inter-electrode space otherwise, the moving electrons may lose their energy on collision with the air molecules in their path. In such devices, the electrons could flow only from cathode to anode. The seed of the production of modern solid-state semiconductor electronics went back to 1930s where it was finally understood that some solid-state semiconductors and their junctions present in the possibility of controlling the number and the direction of flow of charge carrying through them.

Communication Systems:

The transmitter will be located in one place, the receiver is located at some other place in communication systems (far or near) which are separate from the transmitter and the channel is the physical medium that gets connected. Subject to the type of communication system, a channel could be in the form of wires or cables connecting with the transmitter and the receiver or it could be wireless also. The transmitters are meant for converting the message signal. In this chapter, students will learn about Communication Systems in detail.

Atoms and Nuclei:

J.J Thomson proposed the first atom model in 1898. According to this model, the positive charge of the atom is spread throughout the volume of the atom uniformly and the negatively charged electrons are embedded in it like seeds in a watermelon. This model was picturesquely called the plum pudding model of the atom. Another such model is Rutherford’s model. Both the Thomson’s as well as Rutherford’s models constitute an unstable system. Another such model is Bohr’s model where the orbital picture of the hydrogen atom was inconsistent along with the uncertainty principle. It was replaced by modern quantum mechanics in which Bohr’s orbits are regions where the electron may be found with a large probability.

Does the nucleus have a structure, just like an atom does? If so, what will be the constituents of the nucleus? Chadwick was awarded the Nobel Prize in Physics for his discovery of the neutron in 1935. Whereas, Rutherford was the engineer who put forward the existence of the atomic nucleus. In this chapter, you will gain in-depth knowledge of the Nucleus. The mass of a neutron is now known to a high degree of accuracy and is expected to be equal to the total mass of its individual protons and neutrons.

Electrostatics:

The concept of potential energy is not a new concept to you. When an external force acts on a body against the gravitational force or spring, the work done during that moment is stored as the potential energy of the body. From this chapter, you will get an idea of concepts such as electrostatic force between charges, capacitor, electric field, torque, etc.

Dual Nature of Matter:

Through this chapter, you will realise the photoelectric effect in detail. The minimum energy needed by an electron to come out from a metal surface is known as the work function of the metal. The photoelectric effect includes the conversion of light energy into electrical energy. It follows the law of conservation of energy. The photoelectric emission is an immediate process and possesses certain special features in it.

Fundamentally, electrostatic field lines basically start at a positive charge and end at a negative charge or fade at infinity. Magnetic field lines always form a closed loop.  This chapter will help you understand the laws of obeying electricity and magnetism. Also, you will see how the forces are exerted by the magnetic field on moving charged particles like electrons, protons, and current-carrying wires. 

CBSE Class 12 Physics Weightage 2024-25

Chapter wise weightage strategy for class 12 physics .

The strategy to score well in the Physics Board exam using imp questions of physics class 12 is mentioned below:

Students who are weaker in Mathematics should first try to read Modern Physics . The Semiconductor is one of the most important chapters as the weight-age is around 8 marks . Atom and Nuclei together constitute 6 marks .

The next set of chapters will carry a Dual Nature of Radiation which carries 4 marks . Communication system constitutes around 3 marks . Having a good command over these chapters will help students a great deal in scoring higher marks in Physics.

Now you need to start with the important and difficult chapters like Optics which carries 14 marks in the board exam.

In Optics, you have to complete Ray optics first, which is easier to study. In Wave Optics, you have to concentrate more on problems related to Interference, Diffraction, and Young’s double slit experiment.

Current and Electricity is also an easy chapter and it carries 7 marks .

If any student has not started studying Electrostatics and Magnetism till now then it is better to leave these chapters as these two units consume more time than the other chapters. However, these two chapters are very important for competitive exams.

EMI is another chapter which you need to focus on to score well. It is an important chapter for both the exam boards and competitive exams.

You have to practice the ray diagram and other important diagrams carefully. Drawing and studying simultaneously will help you understand many topics faster and in an easier way.

Try to solve objective type questions to make yourself efficient in solving 1 mark questions in the exam; this will be a plus for you.

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Vedantu is bringing a radical change in the way students prepare for their examinations via a medium that is simple to use and comes at absolutely no cost. With a tight schedule and busy lifestyle, it is becoming increasingly difficult to source personal tutors for students. It is practically impossible for students to go for tuitions for every subject which leaves them with very little time to study at home. Also, schools today have teachers who provide a thorough understanding of the chapters in each subject. However, due to the lack of time schools are not able to train students on certain key aspects like important questions, articulated answers and revision of the key parts of certain chapters. Vedantu fills this gap by offering Physics important questions Class 12 PDF chapter wise free download . The questions are formulated after careful thought and consideration by experienced tutors working at Vedantu. Students are guaranteed to benefit from this free service and will definitely gain an added advantage in comparison to studying without any support. Online support in this form has paved a new way for students to increase their chances of securing higher grades.

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Our Important questions for Class 12 Physics with answers PDF for Chapter-wise is free to download and it helps saves a lot of time for students by sifting out the important parts of every chapter and tailor-made answers to the questions that are integral to the syllabus.

CBSE Importance Questions for Class 12 Physics with Answers PDF for Term 2

As mentioned earlier, there are 15 chapters in the syllabus of Class 12 Physics . These chapters are based on crucial topics such as charge, magnetism, electricity, semiconductor, communication system, electromagnetic waves, optics, etc. All these chapters are of utmost importance for studying and scoring in the exams.

This is where the complete study material for this subject will need the important questions compiled by the experts following the latest syllabus. These questions will be the best companion for practising. The students can only be able to answer these questions when they are done with a chapter and have understood the topics and concepts well.

Hence, these questions will also act as the perfect guide to finding out which part of a chapter needs more attention. Solving these questions after preparing a chapter will broaden the preparation level and help students to focus on the prime concepts better.

Advantages of Physics Class 12 Chapterwise Important Questions PDF for Board Exam

The experts of Vedantu have studied the question patterns followed by the CBSE board and have framed these questions to follow and practice. Hence, solving these questions will guide students to learn more probable questions and help them score more.

The solutions framed for the questions will help you to resolve doubts faster and better. You will also learn how to answer such questions in the right format and score more in the exams.

The solutions have been framed in a stepwise simpler version so that students can easily understand how to use the concepts taught in a chapter and formulate such answers.

By following these solutions, you can formulate the right strategy to attempt all the questions in an exam on time.

Download Imp Questions of Physics Class 12 PDF with Answers

Get the free Important Questions for Class 12 Physics with Answers 2024 PDF for all chapters and complete preparing the chapters in an exam syllabus. Solving and studying these questions will help you focus on the prime topics and make your conceptual foundation stronger. Learn from the solutions and how to solve fundamental questions and focus on developing your answering skills accordingly. This is how you can use these important questions and score more in the exams.

CBSE Class 12 Physics Study Materials

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FAQs on CBSE Class 12 Physics Important Questions 2024-25

1.  What is the syllabus of CBSE Class 12 Physics?

Altogether there are 14 chapters in Class 12 Physics. Below is the list of chapters:

Unit -1: Electrostatics 

Chapter 1: Electric Charges and Field

Chapter 2: Electrostatic Potential and capacitance. 

Unit - 2: Current Electricity 

Chapter 3: Current Electricity

Unit - 3: Magnetic Effects of Magnetism and Current 

Chapter 4: Moving Charges and Magnetism

Chapter 5: Magnetism and Matter

Unit - 4: Electromagnetic Induction and Alternating Currents

Chapter 6: Electromagnetic Induction

Chapter 7: Alternating Current

Unit - 5: Electromagnetic Waves

Chapter 8: Electromagnetic Waves

Unit - 6: Optics

Chapter 9: Ray optics and optical instruments

Chapter 10: Wave optics

Unit - 7: Dual Nature of Matter and Radiation 

Chapter 11: Dual nature of radiation and matter

Unit - 8: Atoms and Nuclei 

Chapter 12: Atoms

Chapter 13: Nuclei

Unit - 9: Electronic Devices

Chapter 14: Semiconductor of electronics: devices, simple circuits and materials

Chapter 15: Communication system

2.  How to attempt a physics paper on the mainboard exam?

Firstly, note down all the formulas and practise them frequently to remember them by heart. Derivations play a major role in Physics. Learning the derivations of the Formulas will help you solve the questions on board with ease. Questions in the exam will be asked in a deviant way. To understand them you need to be very much perfect with the derivations of the formulas.

Always focus mainly on the topics with a high weightage of marks. Your main concentration should be on topics like a Sound wave, Wave Optics, Modern Physics, Alternating current. Thermodynamics is a subject which is common in both the subjects of Physics and Chemistry. This is also one of the most important topics in Physics. Thorough practice with all the concepts is a must.

3.  What is the potential energy and conservation of energy?

Potential Energy and Conservation of Energy is one of the most essential topics of the CBSE and NCERT books , from which you will gain knowledge of work and potential energy, conservative and non-conservative forces, path independence of conservative forces, determining potential energy values, gravitational potential energy, elastic potential energy, conservation of mechanical energy, reading a potential energy curve, turning point, equilibrium point.

The topic also discusses the work done on a system by an external force, conservation of energy, isolated system and external force and internal force transfer. Further, you will also learn about the gravitational potential, the relationship between the gravitational field and potential, gravitational potential energy, binding energy, circular motion principles for satellites and Kepler’s law. Here, Kepler’s law explains to you about the centripetal and centrifugal force and you will also be taught how to calculate the centripetal force.

4.  What do we learn in the chapters electricity and magnetism?

Electricity and Magnetism of CBSE and NCERT books explain to you of electromotive force (EMF) and voltage, resistance and resistivity, the origin of resistivity, the temperature dependence of resistivity, electrical current, resistance and Ohm’s law, the temperature dependence of resistivity and resistance, the battery and the electromotive force, heating effect of currents, the grouping of cells, electrical measuring instruments, chemical effect of current, thermoelectricity, confines of Ohm’s law, superconductivity, resistors in series and in parallel and electric circuits and Kirchoff’s law. 

The chapter mainly focuses on electric charges, conductors and insulators, charging of a body, Coulomb’s Law, Electric field, Electric potential energy, electric potential, the relationship between electric field and potential, equipotential surface, electric dipole, Gauss’s law, properties of a conductor,  the attraction of paper to a charged scale, the apparently spontaneous explosion of grain silos, the damage of electronic components during manufacturing, Photocopier & laser printer operation, electric field and potential due to charged spherical shell or solid conducting sphere and electric field and potential due to a solid sphere of charge.

5. What is the unit 'Optics' of Class 12 Physics all about?

Optics in Class 12 is a very crucial unit. This unit consists of two chapters that are:

Ray Optics and Optical Instruments

Wave Optics

Optics is a branch of Science that deals with light and its various phenomena. Ray Optics includes concepts of reflection, refraction, dispersion etc. Wave Optics deals with the topics such as interference, diffraction, young’s double-slit experiment, etc. This unit holds a huge place in Class 12 boards and so, students can brush up their concepts of Optics with the help of study material available on Vedantu website and app.

6. What are the important topics in the unit ‘Electrostatics’ of Class 12 Physics?

The unit ‘Electrostatics’ comprises two chapters namely, electric charges and fields and electrostatic potential and capacitance. Following are listed important topics according to each chapter:

Electric Charges and Fields

Electric charge

Coulomb's law and electric force

Electric field & field lines

Electric dipoles.

Torque Continuous charge distribution.

Electric Flux

Electrostatic Potential and Capacitance

Electrostatic Potential, Potential Energy and Work done

Potential due to i) electric dipole ii) point charge

Equipotential surfaces

Capacitance

Combination of capacitors

Energy stored in capacitors

7. Which chapter is most important in Class 12 Physics?

According to the blueprint or the marking scheme provided by the CBSE, the chapters that hold the highest marks weightage are considered to be the most important chapters. Although every chapter prescribed in the syllabus of the Class 12 NCERT book is crucial for further studies, if we talk about 12 boards then: Electrostatics and Current Electricity with 16 marks, Magnetic Effects and Electromagnetic Induction with 17 marks and Optics and Dual Nature of Radiation and Light with 18 marks are the chapters which need more concentration.

8. How can I score 90 marks in Class 12 Physics?

Remember the following points to ensure 90 marks in Class 12 Physics-

Cover the entire syllabus and don’t skip a single chapter.

Scan the blueprint in your mind and study accordingly.

Practice sample papers and previous years’ papers regularly and thoroughly.

Make your answers precise and to the point while adhering to the word limit.

Add graphical representation or diagrams to enhance your answers.

Do not hurry and solve the numerical with utter care.

Give fifteen minutes to review the entire answer sheet.

9. Why should I choose Vedantu for Important Questions of Class 12 Physics?

Through an easy-to-use and free tool, Vedantu is revolutionizing the way students prepare for exams. Important questions for Class 12 Physics chapter-wise PDF is available at Vedantu website and app for free download to enhance the learning of the students. Expert tutors at Vedantu craft the questions after careful consideration and deliberation. It is certain that students will gain a lot from this free service. Students will have a new way to increase their chances of achieving higher grades with the help of these important questions.

Important Questions for CBSE Class 12

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CBSE Case Study Class 12

While preparing for the board exams, students are being judged on different levels of skills, such as writing, reading, etc. CBSE Case Study Class 12 questions are one of them that helps in assessing critical thinking.

The Central Board of Secondary Education will be asking the case study questions in the Class 12 board examination. Therefore, here on this page, we have provided the CBSE Case Study Class 12 for Maths, Physics, Chemistry, Biology and other subjects. Our subject matter experts have prepared Case Study questions so that Apart from the basic standard questions, students can have a variety of problems to solve. 

Just like MCQs, and other written types questions CBSE Case Study Class 12 questions will impact the overall performance of a student. Therefore for the convenience of the students we have provided the download links here, so that they can easily access the Class 12 Case Study.

Download Subject Wise CBSE Case Study Class 12 Question and Answers PDF 

There are three different streams in class 12th: Science, Arts & Commerce. And all these streams have a variety of subjects therefore, here our subject experts have crafted the Subject Wise Case Study For Class 12. Download Subject Wise CBSE Case Study Class 12 Question and Answers PDF from the below given links.

CBSE Case Study Questions Class 12 for Maths

To learn how to answer CBSE Case Study Class 12 maths questions, it would be a good choice to refer to the separate set of questions in PDF. CBSE Case Study Questions for Class 12 Maths can be quite useful and helpful in understanding how the board will prepare the case based questions for maths. 

The Maths Case studies are distributed into different chapters as per the prescribed syllabus of maths. Each and every chapter contains several number of case studies problems which enable the learners to gain in-depth knowledge in the subject.

The maths case study questions of class 12 are usually based on the formula. If any student wants to get a good score in maths case studies then they have to be well versed with a set of formulas as per the chapters and topics. Case Study Class 12 Maths can be downloaded here on this website for free of cost.

Case Study Questions Class 12 Chapter 1 Relations And Functions

Case Study Questions Class 12 Chapter  3 Matrices

Case Study Questions Class 12 Chapter  4 Determinants

Case Study Questions Class 12 Chapter  5 Continuity And Differentiability

Case Study Questions Class 12 Chapter  6 Application Of Derivatives

Case Study Questions Class 12 Chapter  8 Application Of Integrals

Case Study Questions Class 12 Chapter  9 Differential Equations

Case Study Questions Class 12 Chapter  10 Vector Algebra

Case Study Questions Class 12 Chapter  11 Three Dimensional Geometry

Case Study Questions Class 12 Chapter  12 Linear Programming

Case Study Questions Class 12 Chapter  13 Probability

CBSE Case Study Questions Class 12 for Physics

CBSE Class 12 Physics Case Study for different chapters can be interesting to solve. Class 12th physics case studies generally contain descriptive paragraphs and 4 to 5 different questions are given based on the paragraph. Students are required to read the paragraph thoroughly and understand them as well as observe the given data and information to answer the Class 12 Case Study Questions for Physics. 

In order to solve those questions students are required to have a better understanding of the basic level of physics concepts too, so make sure to use Class 12 Revision Notes of Physics. 

Case Study Questions Class 12 Chapter 1 Electric Charges and Fields

Case Study Questions Class 12 Chapter 2 Electrostatic Potential And Capacitance

Case Study Questions Class 12 Chapter 3 Current Electricity

Case Study Questions Class 12 Chapter 4 Moving Charges And Magnetism

Case Study Questions Class 12 Chapter 5 Magnetism And Matter

Case Study Questions Class 12 Chapter 6 Electromagnetic Induction

Case Study Questions Class 12 Chapter 7 Alternating Current

Case Study Questions Class 12 Chapter 8 Electromagnetic Waves

Case Study Questions Class 12 Chapter 9 Ray Optics & Optical Instruments

Case Study Questions Class 12 Chapter 10 Wave Optics

Case Study Questions Class 12 Chapter 11 Dual Nature Radiation & Matter

Case Study Questions Class 12 Chapter 12 Atoms

Case Study Questions Class 12 Chapter 13 Nuclei

Case Study Questions Class 12 Chapter 14 Semiconductor Electronics - Materials, Devices & Simple Circuits

CBSE Case Study Questions Class 12 for Chemistry

Students opted for Science stream will have to study CBSE Case Study Class 12 Chemistry. The given PDF of CBSE Class 12 Case Study Questions for Chemistry will enable the students to practice tons of questions on a regular basis. It will help them to revise the chemistry questions and its syllabus frequently. The Case study questions allow students to think more creative and find the answers in the quickest way possible. Links to download the PDF file of Class 12 Chemistry Case Study are given here.

Case Study Questions Class 12 Chapter 1 The Solid State

Case Study Questions Class 12 Chapter  2 Solutions

Case Study Questions Class 12 Chapter  3 Electrochemistry

Case Study Questions Class 12 Chapter  4 Chemical Kinetics

Case Study Questions Class 12 Chapter  5 Surface Chemistry  

Case Study Questions Class 12 Chapter  7 The p-Block Elements

Case Study Questions Class 12 Chapter  8 The d- and f-Block Elements

Case Study Questions Class 12 Chapter  9 Coordination Compounds

Case Study Questions Class 12 Chapter  10 Haloalkanes And Haloarenes

Case Study Questions Class 12 Chapter 11 Alcohols, Phenols And Ethers

Case Study Questions Class 12 Chapter  12 Aldehydes. Ketones & Carboxylic Acids

Case Study Questions Class 12 Chapter  13 Amines

Case Study Questions Class 12 Chapter 14 Biomolecules

CBSE Case Study Questions Class 12 for Biology

There are lots of chapters in class 12 Biology from which Class 12 Case Study Questions can be framed. Going through such types of questions help the students to assess their understanding level in the topics discussed in NCERT Class 12 Biology Books. By practicing the Class 12 Case Study Questions for Biology students will be very confident to ace the board exam. Also the Biology case study will be very useful for the NEET exam preparation.

Doing a regular practice of Class 12 Biology Case Study questions is a great way to score higher marks in the board exams as it will help students to develop a grip on the concepts. 

Case Study Questions Class 12 Chapter 2 Sexual Reproduction in Flowering Plants

Case Study Questions Class 12 Chapter 3 Human Reproduction

Case Study Questions Class 12 Chapter 4 Reproductive Health

Case Study Questions Class 12 Chapter 5 Principles of Inheritance & Variation

Case Study Questions Class 12 Chapter 6 Molecular Basic of Inheritance

Case Study Questions Class 12 Chapter 8 Human Health And Diseases

Case Study Questions Class 12 Chapter 10 Microbes in Human Welfare

Case Study Questions Class 12 Chapter 11 Biotechnology - Principles & Processes

Case Study Questions Class 12 Chapter 12 Biotechnology And Its Applications

Case Study Questions Class 12 Chapter 13 Organisms And Populations

Case Study Questions Class 12 Chapter 15 Biodiversity And Conversation

Case study types of questions are generally descriptive that helps to gather more information easily so, it is kinda easy to answer. However, our subject matter experts have given the solutions of all the CBSE Case Study Class 12 Biology questions.

Passage Based Class 12 Case Study Questions in PDF

CBSE Class 12 Case studies are known as Passage Based Questions. These types of problems usually contain a short/long paragraph with 4 to 5 questions. 

Students can easily solve Passage Based Class 12 Case Study Questions by reading those passages. By reading the passage students will get the exact idea of what should be the answers. Because the passage already contains some vital information or data. However a better understanding of the basic concepts that can be learned from the NCERT Class 12 Textbooks will aid in solving the Case based questions or passage based questions.

How to Download CBSE Case Study of Class 12?

Follow the below given simple steps to know how to download CBSE Case Study of Class 12:-

• Open Selfstudys website in your browser
• Go to the navigation menu that look like this
• Now, click on CBSE and then Case Study respectively
• A new page will open, where you have to click on “Class 12”
• Now, you are ready to select the subject for which you want to download the case study questions.

How to Solve Case Study Based Questions of Class 12?

There are very simple methods that a student should keep in mind while solving CBSE Case Study Class 12 for any subject:

• Read each line of paragraph carefully and pay attention to the given data/numbers. Often questions are framed according to the highlighted data of the passage.
• Since case study questions are often framed in Multiple choice questions, students should have the knowledge of elimination methods in MCQs.
• Having a good understanding of the topics that are discussed in CBSE Class 12 Books are ideal to Solve Case Study Based Questions of Class 12.

Features Of Class 12 Case Study Questions And Answers PDF

The three most noticeable features of Class 12 Case Study Questions And Answers Pdf are -

• It Is Free To Use:  Keeping in mind the need of students and to help them in doing Self Study, our team has made all the PDF of CBSE Case Study Class 12 free of cost.
• Answers Are Given:  Not only the PDFs are free provided but answers are given for all the questions of CBSE Case Study Class 12. 
• PDF Can Be Downloaded Or Viewed Online:  Many students don’t like to download the PDFs on their device due to the shortage of storage. Therefore, CBSE Class 12 Case Study questions are made available here in online format, so that students can view them online. However, through the Selfstudys app, a learner can download the PDFs too.

Benefits of Using CBSE Class 12 Case Study Questions and Answers

The CBSE Class 12 Case Study Questions and Answers can help a student in several ways:

• In Exam Preparation:  Those who go through the CBSE Case Study Class 12 will find support during the exam preparation as case based questions are also asked in the CBSE Class 12 Board examination. 
• Help in brushing up the previous learnings:  No matter how brilliant you are, you have to revise the studied topics time and again to keep them refreshed. And in this task, the CBSE Class 12 Case Study Questions and Answers can help a lot.
• To develop the critical thinking:  Able to analyse information and make an objective judgement is a skill that is known as critical thinking. A student of class 12 can use CBSE Case Study Class 12 with answers to develop critical thinking so that they can make better decisions in their life and in the board examination.

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Class 12 Physics Chapter 8 Case Study Question Electromagnetic Waves PDF Download

In Class 12 Boards there will be Case studies and Passage Based Questions will be asked, So practice these types of questions. Study Rate is always there to help you. Free PDF Download of CBSE Class 12 Physics Chapter 8 Electromagnetic Waves Case Study and Passage Based Questions with Answers were Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 12 Physics  Electromagnetic Waves  to know their preparation level.

In CBSE Class 12 Physics Paper, Students will have to answer some questions based on  Assertion and Reason . There will be a few questions based on case studies and passage-based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.

Electromagnetic Waves Case Study Questions With answers

Here, we have provided case-based/passage-based questions for Class 12 Physics  Chapter 8 Electromagnetic Waves

Case Study/Passage Based Questions

Question 1:

Read the passage given below and answer the following questions from 1 to 4

In an electromagnetic wave both the electric and magnetic fields are perpendicular to the direction of propagation, that is why electromagnetic waves are transverse in nature. Electromagnetic waves carry energy as they travel through space and this energy is shared equally by the electric and magnetic fields. The energy density of electromagnetic waves is the energy in a unit volume of the space through which the wave travels.

The fundamental particle in an electromagnetic wave is (a) photon (b) electron (c) phonon (d) proton

Answer: (a) Photon is the fundamental particle in an electromagnetic wave.

For a wave propagating in a medium, identify the property that is independent of the others. (a) velocity (b) wavelength (c) frequency (d) all these depend on each other

Answer: (c) – Frequency u remains unchanged when a wave propagates from one medium to another. Both wavelength and velocity get changed.

The electric and magnetic fields of an electromagnetic waves are (a) in opposite phase and perpendicular to each other (b) in opposite phase and parallel to each other (c) in phase and perpendicular to each other (d) in phase and parallel to each other

Answer: (c) – The electric and magnetic fields of an electromagnetic wave are in phase and perpendicular to each other.

Question 2:

An electromagnetic wave transports linear momentum as it travels through space. If an electromagnetic wave transfers a total energy U to a surface in time t, then the total linear momentum delivered to the surface is p = U/c. When an electromagnetic wave falls on a surface, it exerts pressure on the surface. In 1903, the American scientists Nichols and Hull succeeded in measuring radiation pressures of visible light where others had failed, by making a detailed empirical analysis of the ubiquitous gas heating and ballistic effects.

The pressure exerted by an electromagnetic wave of intensity I(W m –2 ) on a non-reflecting surface is (c is the velocity of light) (a) Ic (b) Ic 2 (c) I/c (d) I/c 2

Answer: (c) – Pressure exerted by an electromagnetic radiation,P= I/C

Light with an energy flux of 18 W/cm 2 falls on a non-reflecting surface at normal incidence. The pressure exerted on the surface is (a) 2 N/m 2 (b) 2 × 10–4 N/m 2 (c) 6 N/m 2 (d) 6 × 10–4 N/m 2

Answer: (d) – Solve it

A point source of electromagnetic radiation has an average power output of 1500 W. The maximum value of the electric field at a distance of 3 m from this source (in V m –1 ) is

(a) 500 (b) 100 (c) 500/3 (d) 250/3

Answer: (b) – Solve it

Hope the information shed above regarding Case Study and Passage Based Questions for Class 12 Physics Chapter 8 Electromagnetic Waves with Answers Pdf free download has been useful to an extent. If you have any other queries of CBSE Class 12 Physics Electromagnetic Waves Case Study and Passage Based Questions with Answers, feel free to comment below so that we can revert back to us at the earliest possible.

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[Updated] CBSE Class 12 Physics Communication Systems Notes 2024-25 in PDF

Discover comprehensive CBSE Class 12 Physics Communication Systems Notes, meticulously designed to enhance your understanding of complex concepts. These notes provide a detailed exploration of communication systems, offering insights into principles, processes, and applications. With clear explanations and illustrative examples, they facilitate easy comprehension of key topics. Whether you’re preparing for exams or seeking to deepen your knowledge, these notes serve as an invaluable resource. Elevate your learning experience and excel in physics with these meticulously crafted CBSE Class 12 Physics Communication Systems Notes.

Before discussing the Class 12 Physics Communication Systems Notes, let us check the CBSE Class 12 Summary; below, we have mentioned the complete CBSE Class 12 Summary.

Class 12 Physics Communication Systems Notes

Below, we have mentioned the CBSE Class 12 Physics Communication Systems Notes. Students have checked the complete Class 12 Physics Communication Systems Notes PDF for the final examination’s excellent score.

Class 12 Physics Syllabus

Check out the latest CBSE NCERT Class 12 Physics Syllabus. The syllabus is for the academic year 2024-25 sessions. First of all, check the CBSE Class 12 Physics Exam Pattern. Students should review the complete syllabus and exam pattern with the marking scheme.

Class 12 Physics Exam Pattern

In this section, we have mentioned the Class 12 Physics Exam Pattern. Students can check the Class 12 Physics Exam Pattern for the academic year 2024-25.

NOTE:-  To know more information about the Class 12 Physics Syllabus

Class 12 Physics Marking Scheme

Students trying to make a career in medical or other nonme dical fields like pharmacy, dentistry, BAMS, MBBS, engineering, etc., must remember that they must score excellent marks in their CBSE class 12 board examination. The marking scheme is the proper distribution of marks according to the Units or Chapters. In addition, it will show students the importance of Class 12 Communication Systems and the total number of questions asked in this chapter.

NOTE:-  To know more information about the Class 12 Physics Marking Scheme

Class 12 Physics Sample Paper

Class 12 Physics Sample Paper or the board exam 2024-25 has been released by the Central Board of Secondary Education (CBSE). Also, the marking scheme and answer key for each paper is available. Students must Download the complete Class 12 Physics Sample Papers in PDF for the final examination’s great score. You can download the Last 6th Year Sample Paper 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, and 2015.

NOTE:-  To know more information about the Class 12 Physics Sample Paper

Class 12 Physics Useful Resources

We have tried to bring CBSE Class 12 Physics NCERT Study Materials like Syllabus, Worksheet, Sample Paper, NCERT Solutions, Important Books, Holiday Homework, Previous Year Question Papers etc. You can visit all these important topics by clicking the links given.​

Frequently Asked Questions (FAQ)

Q. what is a communication system in physics.

A. Communication System The Channel connects the transmitter and the receiver. Information Source – The source signals the information that needs to be communicated. Signal – Information in an electrical form suitable for transmission is called a signal.

Q. What are the types of communication systems?

A. The four types of communication systems based on the signal specification are Analog communication systems. Digital communication systems. Baseband communication systems. Carrier communication systems.

Q. Is class 12 Physics difficult?

A. The CBSE Class 12 Physics paper was quite difficult, and most students said that the MCQ or the first section was the most difficult section. The questions were quite conceptual.

Q. Is Edufever study material free?

A. CBSE Study Materials – Access All Resources for Free!

Q. Does Edufever provide study material?

A. We at Edufever provide CBSE boards with Study Materials to assist you in preparing for your upcoming exam. Studying this helps you understand the exam pattern set by CBSE boards’ study material this year.

Q. Should I make Physics notes?

A. You must write your notes keeping in mind the essential concepts of the syllabus that could be asked in the exam. So don’t keep on writing whatever you are learning. Instead, write short notes that make sense.

Q. Are there any changes in the CBSE Class 12 Physics Syllabus for 2024-25?

A. According to the latest updates, there is no update on decreasing the CBSE 12 Physics Syllabus for 2024-25.

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Shivam Kumar, a B.Sc in Agriculture graduate, is a passionate author with a flair for content writing and a penchant for educational blogs. With prior experience as a CBSE Content Curator, Shivam blends his expertise in agriculture with his talent for crafting engaging content. His dedication to learning and sharing knowledge shines through in his work, making him a standout figure in both the agricultural and educational spheres.

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