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Two plane mirrors M(1) and M(2) are in...

Two plane mirrors `M_(1) ` and `M_(2)` are inclined at angle as shown in Figure . A ray of light1, which is parallel to `M_(1)` , strike `M_(2)` and after two reflections, ray 2 becomes parallel to `M_(2)`. Find the angle `theta` .

A

`0^(@)`

B

`30^(@)`

C

`45^(@)`

D

`60^(@)`

Text Solution

Verified by Experts

The correct Answer is:
D
Different angles are as shown in figure.

In triangle ABC, `theta + theta + theta = 180^(@), theta = 60^(@)`
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