Unpolarized light is passed through three successive Polaroid filters, each with its transmission axis at 45.0° to the preceding filter. What percentage of light gets through?
A) 0%
B) 12.5%
C) 25.0%
D) 50.0%
E) 33.3%

Question

Quizplus · Accepted Answer

Each Polaroid filter transmits half of the light that passes through it, so the total percentage of light that gets through is:
(1/2) × (1/2) × (1/2) × 100% = 12.5%

Unpolarized Light Is Passed Through Three Successive Polaroid Filters, Each