Explain scattering of light and its application 2
Answers
Answer:
Scattering occurs when light or other energy waves pass through an imperfect medium (such as air filled with particles of some sort) and are deflected from a straight path. ... The light is deflected off of its straight path and scatters in many directions.
Explanation:
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Explanation:
Scattering of light:
Scattering of light means to throw light in various random directions. Light is scattered when it falls on various types of suspended particles in its path. Depending on the size of particles, the scattering can be of white sunlight or of the component colours of sunlight.
Applications:
The sky appears blue during a clear cloudless day because the molecules in the air scatter blue light from the sun more than they scatter red light.
During sunrise and sunset, the sky appears red and orange because the blue light has been scattered out and away from the line of sight.
Scattering of light
Light scattering is a form of scattering in which light in the form of propagating energy is scattered. Light scattering can be thought of as the deflection of a ray from a straight path. Scattering is also the process of absorption and then re-emission of light energy.
The colour of the scattered light depends on the size of the scattering particles.
Very fine particles scatter mainly blue light while particles of larger size scatter light of longer wavelengths.
If the size of the scattering particles is large enough, then, the scattered light may even appear white.

Why is the colour of the clear sky blue?
The sky appears blue during a clear cloudless day because the molecules in the air scatter blue light from the sun more than they scatter red light. Scattering of light causes the blue colour of the sky.
These are more effective in scattering light of shorter wavelengths at the blue end than the light of longer wavelengths at the red end. The scattered blue light enters our eyes.
If the earth had no atmosphere, there would not have been any scattering. Then, the sky would have looked dark. The sky appears dark to passengers flying at very high altitudes, as scattering is not prominent at such heights
Colour of the sun at sunrise and sunset
The scattering of light causes the reddish appearance of the Sun at the sunrise or the sunset.
Light from the sun near the horizon passes through thicker layers of air and larger distance in the earth’s atmosphere before reaching our eyes.Near the horizon, most of the blue light and shorter wavelengths are scattered away by the particles.
Therefore, the light that reaches our eyes is of longer wavelengths.
This gives rise to the reddish appearance of the Sun.
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