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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` .

Text Solution

Verified by Experts

Different angles are as shown in the figure below.
In triangle ABC
`theta+theta+theta=180^@`
`:. theta =60^@`
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