How far above the horizon is the Moon when its image reflected in calm water is completely polarized?
A)36.9°
B)43.2°
C)46.8°
D)53.1°
E)57.5°

Question

Quizplus · Accepted Answer

The angle of polarization for reflected light is known as Brewster's angle, which is approximately 53.1° for water. The angle of elevation of the Moon above the horizon is complementary to this, so it is 90° - 53.1° = 36.9°.

How Far Above the Horizon Is the Moon When Its