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

Question 1 of 15

Question 2 of 15

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

Question 2 of 15

Question 3 of 15

3. Electron moves in the orbit as
A.
B.
C.
D.

Question 3 of 15

Question 4 of 15

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

Question 4 of 15

Question 5 of 15

5. A three dimensional image is obtained by  ____________.
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B.
C.
D.

Question 5 of 15

Question 6 of 15

6. Einstein’s photoelectric equation is given by _________.
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B.
C.
D.

Question 6 of 15

Question 7 of 15

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

Question 7 of 15

Question 8 of 15

8. Which of the following is not a form of uncertainty principles
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B.
C.
D.

Question 8 of 15

Question 9 of 15

9. Linear momentum of a  photon is ________
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B.
C.
D.

Question 9 of 15

Question 10 of 15

10. If the wavelength of incident radiation in a photoelectric experiment is decreased then
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B.
C.
D.

Question 10 of 15

Question 11 of 15

11. In Compton scattering, the change in wave length is max. if _______.
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B.
C.
D.

Question 11 of 15

Question 12 of 15

12. An observer shoots parallel to a meter stick at very high (relativistic) speed and finds that the legth of meter stick is ________.
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B.
C.
D.

Question 12 of 15

Question 13 of 15

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

Question 13 of 15

Question 14 of 15

14. Compton effect proves the __________
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B.
C.
D.

Question 14 of 15

Question 15 of 15

15. U.V radiations of 6.2eV falls on an aluminium surface, K.E of fastest electron emitted is (work function = 4.2eV)
A.
B.
C.
D.

Question 15 of 15


 

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