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If a light ray incident on a plane mirro...

If a light ray incident on a plane mirror makes an angle `30^(@)` with it, find the angle of incidence and angle of reflection.

A

90 degree

B

45 degree

C

30 degree

D

60 degree

Text Solution

Verified by Experts

The correct Answer is:
D
It is given that the incident ray makes an angle `30^(@)` with the mirror. But the angle of incidence is the angle between the incident ray and the normal.
Then, `anglei=90^(@)-30^(@)=60^(@)` on applying laws of reflection, `anglei=angler=60^(@)`.
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