Physics Dawn of Modern Physics Online Mcqs Test

Mustansar KhanLast Updated: October 15, 2025

Important Dawn of Modern Physics Question and Answer

Total Questions: 49
Time Allowed: 25 Minutes
Total Marks: 49
How to Attempt Test: Please choose the right Option in MCQ-type question.
Test Helpful For: Physics Test
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Physics Interview Question Answer

Dawn of Modern Physics Practice Test Online With Explanation

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1. Which electromagnetic wave has the shortest wavelength?

2. In the particle model of light, light is composed of:

3. Which form of radiation has the highest photon energy?

4. What does the equation E = hf suggest about light?

5. The energy of a photon is given by:

6. Who first explained blackbody radiation using quantum theory?

7. What happens to the kinetic energy of emitted electrons when light intensity is increased?

8. The speed of light in vacuum is:

9. If frequency is doubled, photon energy becomes:

10. The term “quantum” refers to:

11. The dual nature of light was confirmed by:

12. Who proposed the particle nature of light?

13. What is the relationship between photon energy and wavelength?

14. Which of the following best demonstrates the quantized nature of light?

15. Who developed the concept of photons?

16. What does the threshold frequency depend on?

17. Which equation represents Einstein’s photoelectric equation?

18. What happens to photon energy when frequency increases?

19. If the frequency of incident light is less than the threshold frequency:

20. According to the particle model, light transfers energy by:

21. What constant is used in the formula E = hf?

22. As frequency increases, what happens to the photon’s wavelength?

23. Which term describes the ability of photons to eject electrons?

24. As per quantum theory, energy is:

25. What is the speed of all photons in a vacuum?


 

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Mustansar KhanLast Updated: October 15, 2025

Mustansar Khan

Hey Exam Warriors! I'm Mustansar Khan, your ally in conquering tests. Uncover strategies, real-time experiences, and expert advice to turn your study sessions into victories. Let's gear up for success!
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