CBSE Class 12 Physics Sample Paper 2022 Set 02 Solved

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Explore authentic exam practice materials through the CBSE Class 12 Physics Sample Paper 2022 Set 02 Solved. Tailored for Class 12 learners, utilizing these Physics sample papers ensures thorough preparation and strengthens time management skills before final CBSE evaluations.

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SECTION – A
 
1. Potentiometer wire AB is connected to a cell Ε1 of negligible internal resistance. If thickness of the wire AB is decreased, in which direction will the balance point J shift? Why?
CBSE Class 12 Physics Sample Paper 2022 Set B Solved 1
 
2. Define mobility of electrons. Write its unit. 
 
3. In an LCR – circuit, capacitance is changed from C to 2C. What should be the change in the inductance such that the resonant frequency to remain unchanged?
 
4. State two applications of ultra-violet radiations.
 
5. In a transistor, doping level in base is increased slightly. How will it affect
(i) collector current and (ii) base current?
 
SECTION – B
 
6. Show that the displacement current produced is equal to the conduction current, when a capacitor is discharged.
 
7. Derive an expression for the electric field E due to a dipole of length ‘2a’ at a point distant ‘r’ from the centre of the dipole on the axial line.
 
OR
A dipole of dipole moment ‘p’ is placed in uniform electric field E such that dipole moment makes an angle θ with the electric field. Obtain an expression for torque experienced by the dipole.
 
8. Define the following terms in communication. (i) Attenuation (ii) Transducer. 
 
9. The graph below shows variation of photo-electric current with collector plate potential for different radiations.

CBSE Class 12 Physics Sample Paper 2022 Set B Solved 2

 
(i) Which physical parameter is kept constant for the three curves?
(ii) Which radiation will emit photo electron of largest kinetic energy? Why?
 
10. The energy levels of an atom are as shown in figure. (i) Which one of these transitions will result in the emission of a photon of wavelength 275 nm?
(ii) Which transition corresponds to emission of radiation of maximum wavelength?

CBSE Class 12 Physics Sample Paper 2022 Set B Solved 3

SECTION – C
 
11. (a) When an ac source is connected to an ideal inductor, show that the average power supplied by the source over a complete cycle is zero.
(b) A lamp is connected in series with an inductor and an AC source. What happens to the brightness of the lamp when the key is plugged in and iron rod is inserted inside the inductor? Explain.
 
12. In the arrangement of capacitors shown below, the energy stored in the 6μF capacitor is E. Find the following:
(i) Energy stored in the 12μF capacitor,
(ii) Energy stored in the 3μF capacitor,
(iii) Total energy drawn from the battery.

CBSE Class 12 Physics Sample Paper 2022 Set B Solved 4


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Access structured sample papers for Class 12 Physics. Solving the CBSE Class 12 Physics Sample Paper 2022 Set 02 Solved provided above helps students understand official exam blueprints and tackle anticipated question formats with confidence.

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  • Original Practice Material: Access unique questions for Physics designed to challenge your understanding.
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  1. Self-Evaluation: Score your answers using official guidance to track your academic progress.
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