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Two polaroid sheets are placed one over ...

Two polaroid sheets are placed one over the other with their axes inclied to each other at an angle `theta` . If only `12.5%` of the intensity of the light incident on the first sheet emerges out from the second sheet, the value of `theta` is

A

`30^(@)`

B

`60^(@)`

C

`45^(@)`

D

`90^(@)`

Text Solution

Verified by Experts

The correct Answer is:
B
`I = (I_(0))/(2)cos^(2)phi`
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