How can we explain the reddish appearance of sun at sunrise or sunset ?

Foundation

Physics Foundation

Human Eye And Colorful World

Question

Scattering of blue light is more than the scattering of red light

Scattering of red light is more than the scattering of blue light

Intensity of sun reduces during sunrise and sunset

Due to the view angle, it appears blue

During sunrise or sunset, the light has to pass through greater distance in the atmosphere. The blue light is removed as it gets scattered the most while the red colour is less scattered and reaches the observer. Thus, we find reddish colour of the sun during sunrise or sunset.

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