Here are some of the most expected MCQs for 12th CBSE Physics 2025:

Electrostatics

- _What is the SI unit of electric flux?_

- A point charge is placed at the centre of a cube. The flux through one face is:

Current Electricity

- _The drift velocity of electrons increases if:_

- _Derive the formula for the equivalent resistance for resistors in parallel._

Magnetism

- _What is the unit of magnetic permeability in free space?_

Optics

- _What happens to the resolving power of a microscope when wavelength decreases?_

- _Define wavefront. State Huygens' principle._

Wave Optics

- _What are coherent sources? Why are they essential for interference?_

- _State and derive Ohm’s law in terms of drift velocity._

Semiconductors

- _Explain the concept of rectification. Draw the circuit for a full-wave rectifier._

Dual Nature of Matter

- _What is the photoelectric effect? Write Einstein’s equation._

You can find more questions and study materials on websites like Careers360

Most repeated questions in physics CBSE board