Two Polaroids P_1 and P_2 are placed with their axis perpendicular to each other.

Two Polaroids P₁and P₂are placed with their axis perpendicular to each other. Unpolarised light I₀ is incident on P₁. A third polaroid P₃ is kept in between P₁ and P₂ such that its axis makes an angle 45° with that of P₁ . The intensity of transmitted light through P₂ is :-
(1) I_0/4 (2) I₀/8 (3) I₀/16 (4) I₀/2

Two Polaroids P_1 and P_2 are placed with their axis perpendicular to each other.

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