The electric field in unpolarized light:
A) has no direction at any time
B) rotates rapidly
C) is always parallel to the direction of propagation
D) changes direction randomly and often
E) remains along the same line but reverses direction randomly and often

Question

Quizplus · Accepted Answer

The electric field in unpolarized light changes direction randomly and often. This is because unpolarized light is a mixture of waves with electric fields oriented in all directions perpendicular to the direction of propagation. As a result, the electric field changes direction randomly and often as the wave moves through space.

The Electric Field in Unpolarized Light