Why does sun appear reddish at sunrise and sunset?


Near the horizon it passes through thick layers of atmosphere having larger particles


Sunlight travels longer distance at sunrise and sunset


Both A and B


None of the above

Verified by Toppr
Correct option is C)

Near the horizon sunlight passes through thicker layers of air having larger particles that scatter light of longer wavelength such as the red end of the spectrum. Also it travels larger distance at horizon before reaching the earth. However, light from the Sun overhead travels relatively shorter distance. At noon, the Sun appears white as only a little of the blue color is scattered whereas, near the horizon, most of the light of shorter wavelength at the blue end of the spectrum are scattered away by the small particles of the atmosphere. Therefore, the light that reaches our eyes is of longer wavelength which gives rise to the reddish appearance of the Sun.

Solve any question of Ray Optics and Optical Instrument with:-
Was this answer helpful?
upvote 0