Unpolarised light of intensity 32 W m⁻² passes through
three polarizers such that the transmission axis of the last
polarizer is crossed with that of the first. The intensity of
final emerging light is 3 W m⁻². The intensity of light
transmitted by first polarizer will be
(a) 32 W m⁻² (b) 16 W m⁻²
(c) 8 W m⁻² (d) 4 W m⁻²
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Answer:
option B
Explanation:
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