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Question: An unpolarised beam of intensity I<sub>0</sub> is incident on a pair of nicol prisms making an angle...

An unpolarised beam of intensity I0 is incident on a pair of nicol prisms making an angle of 60º with each other. The intensity of light emerging from the pair is –

A

I0

B

I0/2

C

I0/4

D

I0/8

Answer

I0/8

Explanation

Solution

(I02)\left( \frac{I_{0}}{2} \right) cos2 60º = I08\frac{I_{0}}{8}.