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Unpolarized light of intensity `I_(0)`is incident on a polarizer and the emerging light strikes a second polarizing filter with its axis at `45^(@)` to that of the first. The intensity of the emerging beam
A. `(I_(0))/(2)`
B. `(I_(0))/(4)`
C. `I_(0)`
D. `(I_(0))/(3)`

1 Answer

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Best answer
Correct Answer - B
`I = (I_(0))/(2), I_(2) = (I_(0))/(2)cos^(2)theta`

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