Dispersion of white light occurs because ever | vedclass

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Question

(A) The phenomenon of dispersion is the splitting of white light into its constituent colours when it passes through a transparent medium like a glass

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(A) The phenomenon of dispersion is the splitting of white light into its constituent colours when it passes through a transparent medium like a glass prism.This occurs because the refractive index of the medium is different for different wavelengths (colours) of light.Since the speed of light in a medium is given by $v = c/n$ (where $c$ is the speed of light in vacuum and $n$ is the refractive index),different colours travel at different speeds in the medium.Consequently,each colour undergoes a different amount of deviation,leading to the separation of colours.

Dispersion of white light occurs because every colour travels with a different speed in a transparent medium.

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