CBSE Class 12 Physics Boards 2020 Question Paper Set 02 Solved

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Official CBSE Exam Papers for Class 12 Physics

Explore authentic exam materials through the CBSE Class 12 Physics Boards 2020 Question Paper Set 02 Solved. Tailored for Class 12 learners, utilizing these Physics previous year papers ensures thorough preparation and strengthens time management skills before final CBSE evaluations.

Solved Previous Year Papers for Physics

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SECTION A
Note : Select the most appropriate option from those given below each question :
 
1. A cell of internal resistance r connected across an external resistance R can supply maximum current when 
 
(A) R = r
 
(B) R > r
 
(C) R = r/2
 
(D) R = 0
 
2. In a current carrying conductor, the ratio of the electric field and the current density at a point is called 
 
(A) Resistivity
 
(B) Conductivity
 
(C) Resistance
 
(D) Mobility
 
3. An electron is released from rest in a region of uniform electric and magnetic fields acting parallel to each other. The electron will 
 
(A) move in a straight line.
 
(B) move in a circle.
 
(C) remain stationary.
 
(D) move in a helical path.
 
4. Above Curie temperature, a 
 
(A) ferromagnetic material becomes diamagnetic.
 
(B) ferromagnetic material becomes paramagnetic.
 
(C) paramagnetic material becomes ferromagnetic.
 
(D) paramagnetic material becomes diamagnetic.
 
5. Displacement current exists only when 
 
(A) electric field is changing.
 
(B) magnetic field is changing.
 
(C) electric field is not changing.
 
(D) magnetic field is not changing.
 
6. Electromagnetic waves used as a diagnostic tool in medicine are 
 
(A) X-rays.
 
(B) ultraviolet rays.
 
(C) infrared radiation.
 
(D) ultrasonic waves.
 
7. At equilibrium, in a p-n junction diode the net current is 
 
(A) due to diffusion of majority charge carriers.
 
(B) due to drift of minority charge carriers.
 
(C) zero as diffusion and drift currents are equal and opposite.
 
(D) zero as no charge carriers cross the junction.
 
8. In an n-type semiconductor, the donor energy level lies 
 
(A) at the centre of the energy gap.
 
(B) just below the conduction band.
 
(C) just above the valance band.
 
(D) in the conduction band.
 
9. When two nuclei (A ≤ 10) fuse together to form a heavier nucleus, the 
 
(A) binding energy per nucleon increases.
 
(B) binding energy per nucleon decreases.
 
(C) binding energy per nucleon does not change.
 
(D) total binding energy decreases.
 
10. In β- decay, a 
 
(A) neutron converts into a proton emitting antineutrino.
 
(B) neutron converts into a proton emitting neutrino.
 
(C) proton converts into a neutron emitting antineutrino.
 
(D) proton converts into a neutron emitting neutrino.
 
Note : Fill in the blanks with appropriate answer :
 
11. If the electric flux entering and leaving a closed surface in air are Φ1 and Φ2 respectively, the net electric charge enclosed within the surface is ___________ . 
 
12. In Young’s double slit experiment, the path difference between two interfering waves at a point on the screen is 5λ/2 ' λ,  being wavelength of the light used. The ___________ dark fringe will lie at this point. 
OR
If one of the slits in Young’s double slit experiment is fully closed, the new pattern has __________ central maximum in angular size.
 
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Download CBSE Class 12 Physics Boards 2020 Question Paper Set 02 Solved for Class 12 Physics

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Where can I download the official PDF for CBSE Class 12 Physics Boards 2020 Question Paper Set 02 Solved?

The CBSE Class 12 Physics Boards 2020 Question Paper Set 02 Solved is available for download on StudiesToday.com. It includes complete set with all sections so that Class 12 students can practice with the exact same paper that came in the CBSE exams.

Are the solutions for CBSE Class 12 Physics Boards 2020 Question Paper Set 02 Solved based on the official CBSE marking scheme?

Yes, the solutions for CBSE Class 12 Physics Boards 2020 Question Paper Set 02 Solved are prepared by subject matter experts as per official marking scheme. Class 12 students will understand the structure of answers and 'step-marks' methodology Physics.

How does solving CBSE Class 12 Physics Boards 2020 Question Paper Set 02 Solved help in preparing for the 2026 exams?

Solving previous year papers like CBSE Class 12 Physics Boards 2020 Question Paper Set 02 Solved is important to understand repeat themes and question difficulty levels of Physics. It helps Class 12 students to test their time management skills too.

Can I access CBSE Class 12 Physics Boards 2020 Question Paper Set 02 Solved in different languages?

Yes, where applicable, CBSE Class 12 Physics Boards 2020 Question Paper Set 02 Solved is available in both English and Hindi mediums. All students from Class 12 can access Physics study material in their preferred language.

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No, all previous year question papers on StudiesToday, including CBSE Class 12 Physics Boards 2020 Question Paper Set 02 Solved, are provided free of charge in mobile-friendly PDF.