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Q.

Two nicol prisms are inclined to reach other at an angle 30°. If I is the intensity of ordinary light incident on the first prism, then the intensity of light emerges from the second prism will be

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a

3I8

b

I2

c

I4

d

3I4

answer is D.

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Detailed Solution

After passing through the first nicol prism the intensity will beI2

As the next nicol prism is placed at an angle of 300

This will resultant an intensity I02cos2(300)=3I08

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Two nicol prisms are inclined to reach other at an angle 30°. If I is the intensity of ordinary light incident on the first prism, then the intensity of light emerges from the second prism will be