Dawn of Modern Physics Test Online Preparation Mcqs

Dawn of Modern Physics Test Online Preparation Mcqs With Answers Start Below

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Question 1 of 15

1. In electron microscope, we use energetic particles because of _______.
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B.
C.
D.

Question 1 of 15

Question 2 of 15

2. The name of the photon for quantum of light was proposed by _________.
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B.
C.
D.

Question 2 of 15

Question 3 of 15

3. A device based on photoelectric effect is called ________.
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B.
C.
D.

Question 3 of 15

Question 4 of 15

4. A photon is ______.
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B.
C.
D.

Question 4 of 15

Question 5 of 15

5. Select an alternative from of uncertainly principle from the following _______.
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B.
C.
D.

Question 5 of 15

Question 6 of 15

6. A photon of wavelength 900nm behaves like a particle of mass _______.
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B.
C.
D.

Question 6 of 15

Question 7 of 15

7. Stopping potential for a metal surface in case of photoelectric emission depends on __________.
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B.
C.
D.

Question 7 of 15

Question 8 of 15

8. As the intensity of incident light increases
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B.
C.
D.

Question 8 of 15

Question 9 of 15

9. The minimum wavelength of the x-rays produced by electrons accelerated through a p[otential difference of V volts is directly proportional to
A.
B.
C.
D.

Question 9 of 15

Question 10 of 15

10. As the temperature of black body is raised, the wavelength corresponding to maximum intensity _________________.
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B.
C.
D.

Question 10 of 15

Question 11 of 15

11. According to special theory of relativity, time is not absolute quantity. This result applies to _______ timing processes.
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B.
C.
D.

Question 11 of 15

Question 12 of 15

12. Which one of the following radiations has the strongest photon?
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C.
D.

Question 12 of 15

Question 13 of 15

13. 0.001 kg mass will be equivalent to _________.
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B.
C.
D.

Question 13 of 15

Question 14 of 15

14. Rest mass of a photon is _______.
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D.

Question 14 of 15

Question 15 of 15

15. The ratio of e/m of a proton to that of an alpha particle is
A.
B.
C.
D.

Question 15 of 15


 

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