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On a plane mirror, a ray of light is inc...

On a plane mirror, a ray of light is incident at an angle of `30^@` with horizontal . To make the reflected ray vertical , at what angle with horizontal must a plane mirror be placed ?

A

`30^@`

B

`60^@`

C

`45^@`

D

`54^@`

Text Solution

Verified by Experts

The correct Answer is:
A
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