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Two mirrors I and II are placed at right...

Two mirrors I and II are placed at right angle to each other as shown in the figure. A ray of light is incident on mirror I at an angle `theta` and then falls on mirror II after reflection. If angle of reflection for the ray reflected from mirror II is `65^@`, then the value of `theta` would be

A

`25^@`

B

`65^@`

C

`45^@`

D

`50^@`

Text Solution

Verified by Experts

The correct Answer is:
A

From the figure shown here,
`x + theta + 90^@ = 180^@`
` theta = 180^@ - 90^@ - x`
` = 90^@ -65^@ = 25^@`
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