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Unpolarised light of intersity I pass...

Unpolarised light of intersity I passes through an ideal polariser A. Another identical polariser B is placed behind A. The intensity of light beyond B is placed between A and B . The internsity beyond B is now found to be `(I )/(8) ` the angle between polariser A and C is

A

`45 ^(@)`

B

`60 ^(@)`

C

`0 ^(@)`

D

`30 ^(@)`

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