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An unpolarised beam of intensity I₀ falls on a polaroid. The intensity

An unpolarised beam of intensity I₀ falls on a polaroid. The intensity of the emergent light is

Options

(a) I₀/4
(b) zero
(c) I₀/2
(d) I₀

Correct Answer:

I₀/2

Explanation:

When unpolarised beam of light of intensity I₀ passes through a polaroid, the intensity of the emergent light is (I₀ / 2).

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