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Two plane mirror M(1) and M(2) area incl...

Two plane mirror `M_(1)` and `M_(2)` area inclined at angle `theta` as`
` shown. A ray of light 1, which is parallel to `M_(1)`strikes `M_(2)` and after two
reflection , the ray 2 become parrallel 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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