A polarizer (with its preferred direction rotated 30° to the vertical) is placed in a beam of unpolarized light of intensity 1. After passing through the polarizer, the beam's intensity is
A)0.25.
B)0.50.
C)0.63.
D)0.87.
E)0.75.

Question

Quizplus · Accepted Answer

When unpolarized light passes through a polarizer, its intensity is reduced by half. Therefore, the intensity after passing through the polarizer is 0.50. The angle of the polarizer does not affect this initial reduction for unpolarized light.

A Polarizer (With Its Preferred Direction Rotated 30° to the Vertical)