1.

A polaroid is placed at `45^@` to an incoming light of intensity `I_0`. Now the intensity of light passing through polaroid after polarisation would beA. `I_(0)`B. `I_(0)//2`C. `I_(0)//4`D. zero

Answer» Correct Answer - B
`I=I_(0) cos^(2)theta = I_(0)cos^(2)45 = (I_(0))/(2)`


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