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Two plane mirrors, M(1) and M(2) are inc...

Two plane mirrors, `M_(1)` and `M_(2)` are inclined at angle `theta` as shown in the figure. A ray of light 1, which is parallel to `M_(1)` strikes `M_(2)` and after two reflections, the rays is 2 becomes parallel to `M_(2)`, The angle `theta` is

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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Knowledge Check

  • 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^(@)`