Two Nicols are oriented with their principal planes making an angle of 60°. The percentage of incident unpolarized light which passes through the system is

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50%

100%

12.5%

37.5%

answer is C.

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Detailed Solution

I1=I02when falls for the next true at an angle ;I2=I1cos2θ=11cos260°= 114=108=12.5%.of 10

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