Dispersion of light can be defined as the separation of a visible light beam into its constituent colours.
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Dispersion of light can be defined as the splitting of a visible light beam into its constituent colours. Red, orange, yellow, green, blue, indigo and violet colours are obtained when a white light beam is dispersed. Dispersion of light happens when a light beam passes through a dispersive medium such as a prism and undergoes refraction. A rainbow is formed when the light is dispersed through raindrops.