Question

explain scattering of light with ray diagram

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Answer 1

Light can be examined entirely from its source. When light passes from one medium to any other medium say air, a glass of water then a part of the light is absorbed by particles of the medium preceded by its subsequent radiation in a particular direction. This phenomenon is termed as a scattering of light. The intensity of scattered light depends on the size of the particles and the wavelength of the light.

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Answer 2

Scattering is the phenomenon in which light ray is redirected in different directions on passing through particles of dimensions comparable to the wavelength of the light.
Due to atmospheric scattering, blue light is scattered the most while red light is scattered the least.
During day, red light is not scattered as the light travels lesser distance and scattering of blue light by the atmosphere makes it appear blue.
During sunrise/sunset, when the Sun is near the horizon, sunlight has to travel a larger distance and blue light is scattered away. Since the red light is scattered less, it can travel longer distances and hence, sun appears reddish during sunrise/sunset.