A linearly polarized light beam of intensity enters three successive ideal polarizers

PHYSICS · Single correct · CBSE · Physics · Wave Optics · Wave Optics

Problem

A linearly polarized light beam of intensity I0I_0 enters three successive ideal polarizers. The transmission axis of the first polarizer is 30∘30^{\circ} from the initial polarization direction. The second polarizer is 60∘60^{\circ} from the first, and the third is 90∘90^{\circ} from the first. What intensity emerges from the third polarizer? (a) 316I0\dfrac{3}{16}I_0 (b) 0 (c) 964I0\dfrac{9}{64}I_0 (d) 38I0\dfrac{3}{8}I_0

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