Physical Optics Test Online Preparation Mcqs

Physical Optics Test Online Preparation Mcqs With Answers Start Below

 7%

Question 1 of 15

1. In an interference pattern
A.
B.
C.
D.

Question 1 of 15

Question 2 of 15

2. Wavelength of X-rays falling at glancing angle of 30° on a crystal with atomic spacing 2 x 10-10m for the first order diffraction is
A.
B.
C.
D.

Question 2 of 15

Question 3 of 15

3. When light incident normally on thin film, the path difference depends upon
A.
B.
C.
D.

Question 3 of 15

Question 4 of 15

4. A light ray travelling from denser to rarer medium suffers a phase change of
A.
B.
C.
D.

Question 4 of 15

Question 5 of 15

5. A point source of light placed in a homogenous medium gives rise to
A.
B.
C.
D.

Question 5 of 15

Question 6 of 15

6. Which is not optically active substance?
A.
B.
C.
D.

Question 6 of 15

Question 7 of 15

7. When one mirror of a Michelson Interferometer is moved a distance of 0.5 mm, we observe 2000 fringes. What will be wavelength of light used?
A.
B.
C.
D.

Question 7 of 15

Question 8 of 15

8. Light on passing through a Polaroid is
A.
B.
C.
D.

Question 8 of 15

Question 9 of 15

9. Optically active crystals rotate the
A.
B.
C.
D.

Question 9 of 15

Question 10 of 15

10. Signal form the T.V remote control travels
A.
B.
C.
D.

Question 10 of 15

Question 11 of 15

11. The locus of all points in a medium having the same phase of vibration is called
A.
B.
C.
D.

Question 11 of 15

Question 12 of 15

12. In double slit experiment, if one of the two slit is covered then
A.
B.
C.
D.

Question 12 of 15

Question 13 of 15

13. In Young’s double slit experiment, the fringe spacing is equal to (d=slit separation and D = distance of screen from slits)
A.
B.
C.
D.

Question 13 of 15

Question 14 of 15

14. A diffraction grating has 500 lines per mm. Its slit spacing or grating element will be equal to
A.
B.
C.
D.

Question 14 of 15

Question 15 of 15

15. In doubt slit experiment, we observe
A.
B.
C.
D.

Question 15 of 15


 

Leave a Reply

Your email address will not be published. Required fields are marked *

error: Content is protected !!