what is difference between dispersion of light and scattering of light?
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Answer:
Scattering of light is the deviation of light rays from its straight path. As light propagates through the atmosphere, it travels in a straight path until it is obstructed by bits of dust or gas molecules in the atmosphere. The process in which light gets deflected by the particles in the medium through which the light passes is called scattering whereas the phenomenon of splitting up of a white light into its constituent colors is called as dispersion. White light contains many wavelengths ( it contains lights of many wavelengths(colors)).Since their wavelengths are different, their speeds are different in a medium, but in vacuum all the wavelengths travel with the same speed. In a material medium, the speed of different wavelengths are different So when a beam of white light passes through a medium, the material medium splits the white light into different components. This phenomenon is called dispersion.
When white light passes through a prism, it spreads out into a band of seven colors, VIBGYOR. This band of colors obtained is called spectrum. Dispersion of light results in the formation of a spectrum.
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