A glass window pane reflects about 4% of the light striking its front surface because
A) light slows down upon entering the glass and the resulting impedance mismatch causes some of that light to reflect.
B) glass is about 16% metallic and this partial conductivity causes a fraction of the light striking glass to reflect.
C) glass is about 4% metallic and this partial conductivity causes a fraction of the light striking glass to reflect.
D) glass is about 2% metallic and this partial conductivity causes a fraction of the light striking glass to reflect.

Question

Quizplus · Accepted Answer

The reflection of light from a glass window pane is primarily due to the impedance mismatch that occurs when light transitions from air (a less dense medium) to glass (a denser medium), causing a portion of the light to reflect back. This phenomenon is not related to the metallic content of glass.

A Glass Window Pane Reflects About 4% of the Light