Question

Phÿßîčß. ❤❤❤❤❤ explain Rayleigh scattering.....

Answer 1

Rayleigh scattering, dispersion of electromagnetic radiation by particles that have a radius less than approximately 1/10the wavelength of the radiation. The process has been named in honour of Lord Rayleigh, who in 1871 published a paper describing this phenomenon.

The angle through which sunlight in the atmosphere is scattered by molecules of the constituent gases varies inversely as the fourth power of the wavelength; hence, blue light, which is at the short wavelength end of the visible spectrum, will be scattered much more strongly than will the long wavelength red light. This results in the blue colour of the sunlit sky, since, in directions other than toward the Sun, the observer sees only scattered light. The Rayleigh laws also predict the variation of the intensity of scattered light with direction, one of the results being that there is complete symmetry in the patterns of forward scattering and backward scattering from single particles. They additionally predict the polarization of the scattered light.
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Rayleigh Scattering. Rayleigh scattering refers to the scattering of light off of the molecules of the air, and can be extended to scattering from particles up to about a tenth of the wavelength of the light. It is Rayleigh scattering off the molecules of the air which gives us the blue sky.
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Rayleigh scattering, named after the British physicist Lord Rayleigh, is the predominantly elastic scattering of light or other electromagnetic radiation by particles much smaller than the wavelength of the radiation. Rayleigh scattering does not change the state of material and is, hence, a parametric process.