ISC Class 12 Physics sample papers and practice questions

Sample papers work best after you have revised each chapter. Below are a few Physics MCQs with answers to check yourself. LerkAI can then create a full practice paper in your board's style for any mix of the 11 chapters, time you, and explain every wrong answer. These are practice papers made by LerkAI, not official ISC papers, so also solve your board's official sample papers.

How to use this page

  1. Choose the chapters you have finished revising.
  2. Generate a timed practice paper with board-style marks.
  3. Attempt it in one sitting without notes.
  4. Read the explanation for every wrong answer and practise your weakest chapter again.

Practice questions with answers

  1. The SI unit of capacitance is:

    Answer: Farad. Capacitance C = Q/V is measured in farad (F).

  2. A convex lens of focal length 20 cm forms an image of an object at infinity at:

    Answer: 20 cm. Rays from infinity converge at the principal focus, 20 cm from the lens.

  3. The de Broglie wavelength of a particle is:

    Answer: h/p. λ = h/p, where p is the particle's momentum.

Chapters

  1. Electrostatics
  2. Current Electricity
  3. Magnetic Effects of Current and Magnetism
  4. Electromagnetic Induction and Alternating Currents
  5. Electromagnetic Waves
  6. Optics: Ray Optics
  7. Optics: Wave Optics
  8. Dual Nature of Radiation and Matter
  9. Atoms
  10. Nuclei
  11. Semiconductor Devices

Frequently asked questions

Are these official ISC sample papers?

No. LerkAI creates practice papers in a board-like pattern. Always also solve the official ISC sample papers.

How many questions can a practice test have?

You can create practice tests with up to 100 questions and an optional timer.

Does LerkAI explain wrong answers?

Yes. After each test you get an explanation for every question you got wrong.

Create a practice paper