A Polaroid is placed at 45° to an incoming unpolarized light of intensity Io. Now the intensity of light passing through the Polaroid after polarisation would be
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a
Io
b
Io/2
c
Io/4
d
zero
answer is B.
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Detailed Solution
The intensity of light passing through a polariser is I0/2 irrespective of its orientation.Hence, intensity will become half of its initial value.