A setting Sun appears red due to
A)scattering of lower frequencies by larger particles in the air.
B)light's longer path through air at sunset.
C)lower frequencies of light emitted during sunset.
D)absorption by smaller particles in the air.

Question

Quizplus · Accepted Answer

The setting Sun appears red primarily because of the scattering of shorter wavelengths of light (blue and violet) by the atmosphere. When the Sun is low on the horizon, its light has to pass through a greater thickness of the Earth's atmosphere. This longer path results in more scattering of the shorter wavelengths, leaving the longer wavelengths (red and orange) to reach the observer's eyes, hence the red appearance.

A Setting Sun Appears Red Due to