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Two vertical plane mirrors are inclined ...

Two vertical plane mirrors are inclined at an angle of `60^(@)` with each other. A ray of light travelling horizontally is reflected first from one mirror and then from the other. The resultant deviation is

A

`60^(@)`

B

`120^(@)`

C

`180^(@)`

D

`240^(@)`

Text Solution

Verified by Experts

The correct Answer is:
D
Angle of deviation `delta = (360-2 theta ) = (360 -2 xx 60)`
`= 240^(@)`
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