Plane polarized light of intensity I₀ is passed through a polarizer oriented at 45$^{\circ}$to the original plane of polarization.What is the intensity transmitted? A) 0.70 I₀ B) 0.50 I₀ C) 0.35 I₀ D) 0.25 I₀ E) 0.00

Question

Quizplus · Accepted Answer

The intensity of light transmitted through a polarizer is given by Malus's Law: I = I₀ cos²θ. For θ = 45°, cos²(45°) = 0.5, so the transmitted intensity is 0.50 I₀.

Plane Polarized Light of Intensity I0 Is Passed Through a Polarizer

Plane Polarized Light of Intensity I₀ Is Passed Through a Polarizer