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A beam of unpolarised light passes throu...

A beam of unpolarised light passes through a tourmaline crystal A and then it passes through a second tourmaline crystal B oriented so that its principal plane is parallel to that of A. The intensity of emergent light is `I_(0)`. Now B is rotated by `45^(@)` about the ray. The emergent light will have intensity

A

`(I_(0))/(2)`

B

`(I_(0))/(sqrt(2))`

C

`I_(0)sqrt(2)`

D

`2I_(0)`

Text Solution

Verified by Experts

The correct Answer is:
A
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