PSEB Class 12 Physics Exam Analysis, Question Paper 2025 Available with Answer Key, Download PDF

PSEB Class 12 Physics Exam 2025: On March 4, 2025, the Punjab School Education Board (PSEB) successfully conducted the Class 12 Physics exam today. According to students, the exam was well-balanced, featuring both straightforward and analytical questions. The question paper followed the latest PSEB exam format.

In this article, the PSEB Class 12 Physics question paper is now available for download, along with the answer key. These resources will help students evaluate their performance and understand the correct answers.

Punjab Board Class 12 Physics Question Paper 2025

Punjab Board Class 12 Physics Question Paper 2025 Download PDF

PSEB Class 12 Physics Answer Key 2025

Now that the paper is over, students might be waiting for the answer key. The answer key helps the students to estimate their total score. Students can check answers to all objective questions below:

One mark questions (20x1=20):

1. The image of real object as seen through convex mirror is:

(a) real

(b) virtual

(c) sometimes real, sometimes virtual

(d) none of these

Answer: (b) virtual

2. Hugen's wave theory allows us to know about:

(a) the wavelength of the wave

(b) the velocity of the wave

(c) the amplitude of the wave

(d) the propagation of wavefronts

Answer: (a) the wavelength of the wave

3. Velocity of light is maximum in:

(a) vacuum

(b) water

(c) diamond

(d) glass

Answer: (a) vacuum

4. The conversion of light energy into electrical energy is achieved in a:

(a) Coolidge tube

(b) Thermocouple

(c) Photo cell

(d) Cloud chamber

Answer: (c) Photo cell

5. The maximum kinetic energy of the photoelectrons depends only on:

(a) incident angle

(b) frequency

(c) pressure

(d) potential

Answer: (b) frequency

6. In the Bohr model of hydrogen atom, the lowest orbit corresponds to:

(a) maximum energy

(b) minimum energy

(c) zero energy

(d) infinite energy

Answer: (b) frequency

7.On doping the conductivity of semi-conductor:

(a) increases

(b) remains same

(c) decreases

(d) none of these

Answer:(a) increases

8.Applying forward bias in p-n junction, the potential barrier:

(a) decreases

(b) increases

(c) remains unchanged

(d) becomes zero

Answer:(a) decreases

9.When the distance between the charges is halved, the force between the charges becomes:

(a) half

(b) twice

(c) four times

(d) none of these

Answer: (c) four times

10.If a dielectric is kept between two plates of capacitor, its capacitance:

(a) increases

(b) decreases

(c) First increases then decreases

(d) none of these

Answer: (a) increases

11.Wheatstone bridge is used to measure:

(a) e.m.f

(b) potential

(c) resistance

(d) current

Answer:(c) resistance

12.The ultimate individual unit of magnetism in any magnet is:

(a) north pole

(b) south pole

(c) magnetic dipole

(d) quadrupole

Answer: (c) magnetic dipole

13.The laws of electromagnetic induction have been used in the construction of:

(a) voltmeter

(b) ammeter

(c) electric motor

(d) generator

Answer: (d) generator

14.What is the peak value of AC 220 Volt?:

(a) 220 V

(b) 311 V

(c) 320 V

(d) 440 V

Answer: (b) 311 V

15.Which has the longest wavelength?:

(a) X-rays

(b) Micro waves

(c) Infrared rays

(d) Radio waves

Answer: (d) Radio waves

True/False

16.Semi-conductor is a device that obeys Ohm's law. False 

17.The density of nuclear matter is independent of the size of the nucleus. True

18.The size of the mirror does not affect the nature of image. False

19.Diffraction of light is the phenomenon of bending of light around the corners of an aperture in its path.True

20.The strength of bar magnet is maximum at its center. False