Unpolarized light of intensity I is incident on a system of two polarizers, A followed by B. The intensity of emergent light is `I/2`. If a third polarizer C is placed between A and B, the intensity of emergent light is reduced to `I/3`. The angle between the polarizers A and C is `theta`. Then :
A
`60^(@)`
B
`0^(@)`
C
`30^(@)`
D
`45^(@)`
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The correct Answer is:
D
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