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Modern Physics Test 2 Online MCQs

Test Name Modern Physics Test 2
Subject Physics
Test Type MCQs
Total Question 15
Total Marks 30
Total Time 15 Mints
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Get the knowledge of Modern Physics in the form of multiple choice questions Test for the recruitment test, all admission test, mock quiz, MCAT and engineering test preparation.

Modern Physics Test 2 Online MCQs

Physics

1. The dynamic mass of the photon is given by

 

Question 1 of 15

2. The maximum energy of the electrons released in photocell is independent of

 

Question 2 of 15

3. Which of the following characteristics of photoelectric effect supports the particle nature of radiations.

 

Question 3 of 15

4. The study of photoelectric effect is useful in understanding

Question 4 of 15

5. Photoelectric effect can be explained by assuming that light

Question 5 of 15

6. In photoelectric effect when photons of energy hv fall on a photosensitive surface (work function hv₀) electrons are emitted from the metallic surface with a kinetic energy. It is possible to say that

Question 6 of 15

7. Which of the following is not property of the photons?

 

Question 7 of 15

8. A photon stimulates the emission of another photon of the same energy. The two are

 

Question 8 of 15

9. A photo sensitive metal is not emitting photoelectrons when irradiated. It will do so when threshold is crossed. To cross the threshold we need to increase

 

Question 9 of 15

10. Photo electric effect supports the quantum nature of light because

Question 10 of 15

11. If the distance of 100 watt lamp is increased from a photo cell, the saturation current ‘i’ in the photo cell varies with distance‘d’ as

 

Question 11 of 15

12. Which of the following makes use of photoelectric effect?

 

Question 12 of 15

13. A photo cell is illuminated by small bright source placed 1 m away. When the same source of light is placed 2 m away. Which of the following in true about the electrons emitted by the photo cathode?

Question 13 of 15

14. In photoelectric effect, the photoelectric current

Question 14 of 15

15. If the ionisation energy for hydrogen atom is 13.6 eV. The energy required to excite it from the ground state to the next higher state is nearly

 

Question 15 of 15


 

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