Question

The refractive index of the material of a prism is and the angle of the prism is . One of the two refracting surface of the prism is made a mirror inwards, by silver coating. A beam of monochromatic light entering the prism from the other face will retrace its path (after reflection from the silvered surface) if its angle of incidence on the prism is?

A

B

C

Zero

D

Medium
NEET
Solution
verified
Verified by Toppr
Correct option is D)

Using


so

Using Snell's Law, 




option 4 is correct

solution
expand
Solve any question of Ray Optics and Optical Instrument with:-
Was this answer helpful?
upvote 0
downvote0
Similar questionsstar-struck