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Two polaroids are placed in the path of unpolarized beam of intensity `I_(0)` such that no light is emitted from the second polarid. If a third polaroid whose polarization axis makes an angle `theta` with the polarization axis of first polaroid, is placed between these two polariods then the intensity of light emerging from the last polaroid will be

A

`((I_(0))/(8))sin^(2) 2theta`

B

`((I_(0))/(4))sin^(2) 2theta`

C

`((I_(0))/(2))cos^(4) theta`

D

`I_(0) cos^(4) theta`

Text Solution

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The correct Answer is:
A
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