# The polaroids are placed in the path of unpolarized beam of intensity I_(0) such that no light is emitted fromthesecond polarid. If a third polaroid

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The polaroids are placed in the path of unpolarized beam of intensity I_(0) such that no light is emitted fromthesecond polarid. If a third polaroid whose polarization axis makes an angle theta with the polarization axis of first polaroid, is placed between these4 polariods then the intensity of light emerging from the last polariod will be
A. ((I_(0))/(8))sin^(2)2theta
B. ((I_(0))/(4))sin^(2)2theta
C. ((I_(0))/(2))cos^(2)theta
D. I_(0)cos^(4)theta

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I = (I_(0))/(2)cos^(2)theta