12th Class Physics Quiz Ranking Challenge

Attempt national level 12th Class Physics Quiz Ranking Challenge! Prepare to compete with fellow physics enthusiasts from around the world as we celebrate the spirit of knowledge and discovery in the fascinating field of physics.

12th Physics Quiz Contest

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Time: 30 Minutes for 20 Question.

Class 12th Physics Quiz Contest [June 2025]

The number of attempts remaining is 1

1. When light is refracted, which of the following does not change?

2. Alternating current can not be measured by D.C. ammeter, because

3. Two spheres A and B of exactly same mass are given equal positive and negative charges respectively. Their masses after charging

4. Wave obtained on superimposition of audible frequency e.m. wave is known as

5. In an insulator, the forbidden energy gap between the valence band and conduction band is of the order of

6. Photoelectric effect can be explained by

7. The lines of force due to earth’s horizontal magnetic field are

8. The electric field inside a spherical shell of uniform surface charge density is

9. A point charge is kept at the centre of metallic insulated spherical shell. Then

10. When light is refracted into a medium,

11. A compass needle which is allowed to move in a horizontal plane is taken to a geomagnetic pole. It will

12. The core of transformer is laminated to reduce

13. 12 signals each band limited to 5 kHz are to be transmitted by frequency-division multiplexer. If AM-SSB modulation guard band of 1 kHz is used then the bandwidth of multiplexed signal is

14. Which of the following is drawback of amplitude modulation?

15. Which of the following is not due to total internal reflection?

16. Coulomb’s law is true for

17. Debye is the unit of

18. Of the following about capacitive reactance which is correct?

19. In Einstein’s picture of Photoelectric emission, the photoelectric emission does not take place by

20. Charge is the property associated with matter due to which it produces and experiences

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Mohit Sinha

I’m Mohit Sinha! With a Master’s degree in Physics, I bring a deep understanding of the subject to my teaching. I specialize in guiding students through the complexities of Physics for 11th and 12th grades and also offer English instruction from 1st to 12th grade. When I'm not in the classroom, I'm passionate about creating engaging educational content for QuizRanker.in, where I help make learning both fun and effective.