Unpolarized light of intensity I₀ is incident upon the first of two polarizers. The final transmitted intensity is (3/8)I₀. With respect to the first polarizer, the second polarizer has its preferential direction at A) 52°. B) 41°. C) 38°. D) 30°.

Question

Quizplus · Accepted Answer

The transmitted intensity through two polarizers is given by Malus's Law: I = I₀/2 * cos²(θ). Solving (3/8)I₀ = I₀/2 * cos²(θ) gives θ = 30°.

Unpolarized Light of Intensity I0 Is Incident Upon the First

Unpolarized Light of Intensity I₀ Is Incident Upon the First