White light is made up of 7 colours. When put through a prism like a raindrop or a glass block, the 7 colours all travel at different speeds, because some slow down more than others. Thus, light is dispersed into it's spectrum
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Dispersion, in physics, is the result of light refracting in a material. The different wavelengths of light will "bend" at different angles depending on their wavelength. As the refracted light approaches a critical angle at which all the light will be reflected instead of passing through the material the maximum amount bend that the light can achieve occurs. At this point the human eye can begin to perceive the different bends that each color experiences in the material. Dispersion, in statistics, is the extent to which values of a variable differ from a fixed value such as the mean.
distinguish between dispersion and skewness
Dispersion is the act of spreading people or things (like seeds) out over a large area. Measures of dispersion tell us the degree of variation of values in a sample or population.
They refract light as the light enters through one side of the prism, at a certain angle, the glass that the prism is made of, decreases the speed of light. And so it bends. Then it hits the other face and emerges out, and that is when the dispersion happens and the white light splits into the spectrum of seven colours
Dense smoke from a forest fire - would disperse in the atmosphere. This would be an example of natural dispersion