Question: Two polarizing sheets have their transmission axes crossed so that no light gets through. A third sheet is inserted between the first two such that

Two polarizing sheets have their transmission axes crossed so that no light gets through. A third sheet is inserted between the first two such that its transmission axis makes an angle θ with that of the first sheet. Unpolarized light of intensity I₀ is incident on the first sheet. Find the intensity of the light transmitted through all three sheets if

(a) θ = 45^o and

(b) θ = 30^o.

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