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A ray of light is incident at an angle o...

A ray of light is incident at an `angle` of `30^(@)` on a plane mirror `M_(1)`. Another mirror `M_(2)` is inclined at angle `theta` to `M_(1)`. What is the value of angle `theta` so light reflected from `M_(2)` is parallel to `M_(1)`.
.

A

`60^(@)`

B

`75^(@)`

C

`67.5^(@)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
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