Physics Atomic Spectra Test Online Preparation Mcqs

Physics Atomic Spectra Test Online Preparation Mcqs With Answers Start Below

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Question 1 of 15

1. If electron and proton have the same wavelength then they have same
A.
B.
C.
D.

Question 1 of 15

Question 2 of 15

2. Maximum frequency in the spectrum from X-ray tube is directly proportional to the ______.
A.
B.
C.
D.

Question 2 of 15

Question 3 of 15

3. The characteristics X-rays spectrum is due to
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B.
C.
D.

Question 3 of 15

Question 4 of 15

4. Reverse process of photoelectric effect is
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B.
C.
D.

Question 4 of 15

Question 5 of 15

5. The radiations emitted from hydrogen filled discharged tube show
A.
B.
C.
D.

Question 5 of 15

Question 6 of 15

6. In an X-ray tube, electrons each of charge e are accelerated through V potential difference allowed to hit a metal target. The wavelength of the X-rays emitted is _______.
A.
B.
C.
D.

Question 6 of 15

Question 7 of 15

7. Band spectrum is produced by:
A.
B.
C.
D.

Question 7 of 15

Question 8 of 15

8. UV radiation can be produced by
A.
B.
C.
D.

Question 8 of 15

Question 9 of 15

9. The penetrating power of x-rays depends on their
A.
B.
C.
D.

Question 9 of 15

Question 10 of 15

10. The minimum wavelength of X-rays produced by the bombardment of electrons on the screen of a television set where the acceleration potential is 2.0K V, will be
A.
B.
C.
D.

Question 10 of 15

Question 11 of 15

11. A Balmer line is emitted when the electron in a hydrogen atom jumps from
A.
B.
C.
D.

Question 11 of 15

Question 12 of 15

12. X-rays are _________
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B.
C.
D.

Question 12 of 15

Question 13 of 15

13. Excited atoms return to their ground state in ________.
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B.
C.
D.

Question 13 of 15

Question 14 of 15

14. Wave-like characteristic of electron is demonstrated by
A.
B.
C.
D.

Question 14 of 15

Question 15 of 15

15. Radiation produced from TV picture tube is
A.
B.
C.
D.

Question 15 of 15


 

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