When light passes through common windowpane, its angle of emergence is
A)usually less than its angle of incidence.
B)always less than its angle of incidence.
C)the same as its angle of incidence.
D)usually more than its angle of incidence.
E)always more than its angle of incidence.

Question

Quizplus · Accepted Answer

The angle of emergence is the same as the angle of incidence when light passes through a common windowpane because the windowpane is a parallel slab, and according to the laws of refraction, the angle of incidence equals the angle of emergence in such cases.

When Light Passes Through Common Windowpane, Its Angle of Emergence