When a light wave enters into a medium of different optical density
A) its speed and wavelength change.
B) its frequency and wavelength change.
C) its speed and frequency change.
D) its speed, frequency, and wavelength change.

Question

Quizplus · Accepted Answer

When a light wave enters a medium of different optical density, its speed and wavelength change, but its frequency remains constant because frequency is determined by the source of the light and does not change when light moves from one medium to another.

When a Light Wave Enters into a Medium of Different