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A polariser is place in a pth of unpolar...

A polariser is place in a pth of unpolarised light of intensity `I_(0)` An another polariser is placed in such a way that its axis makes an angle `30^(@)` with first. Opne The intensity of emergent light will be

A

0

B

`(I_(0))/(4)`

C

`(3I_(0))/(4)`

D

`(3I_(0))/(8)`

Text Solution

Verified by Experts

The correct Answer is:
4

`therefore I =(I_(0))/(2) cos^(2) 30 ^(@) = (3I)/(8)`
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