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Mirrors at an angle

The intensity...

Question

The intensity of light transmitted by the analyzer is maximum when

A

The reflected ray is partially polarized

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B

The transmission axes of the analyzer and the polarizer are parallel

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C

The transmission axes of the analyzer and the polarizer are perpendicular

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D

The reflected ray is fully polarized

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Solution

The correct option is B
The transmission axes of the analyzer and the polarizer are parallel

According to Malus’s law Iαcos²θ, when θ=0^o or 180^o, I=I_ocos²0^o = I_o

i.e the intensity of the light transmitted by the analyzer is maximum when the transmission axes of analyzer and polarizer are parallel.

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