Question

what is the cause of dis persion of white light passing through a prism​

Answer 1

Dispersion of white light is defined as splitting of white light into its monochromatic components while passing through a different intervening media.

The reason for Dispersion is :

First let's look at Gauchy's Formula :

$\delta = a + \dfrac{b}{ \mu} + \dfrac{c}{ {( \mu)}^{2} } + ....$

Higher the wavelength of monochromatic components , lower is the deviation . So different components in white light shall undergo different magnitude of deviation while passing through the glass medium of prism.

As a result , we get to see the spitting effect of polychromatic white light into its components.

Answer 2

Explanation:

white light consist different type of colours wavelengths when it passes through the prism it diviates or split into different colours called vingyor.

if it will help you please mark me as a briliantist.