Question

what is the causes behind the dispersal of white light while passing through prism? ​

Answer 1

Answer:

here's your Answer

This because of the density of the atoms present in prism.

Different colours has different wave length and velocity . White Light is combination of that.

Answer 2

$\mathfrak{\large{\underline{\underline{Answer:-}}}}$

When a light is passing through a prism it get dispersed in to seven constituents colours VIBGYOR.

This happen due to gradually change in speed of light when it travels from a rarer to denser medium.

Every constituents colour has same speed in vacuum but different speed in another medium.Thats why the white light get dispersed in to its seven constituents colour.

The angle of prism is very important behind the dispersion of white light in to seven constituents colour by prism.

Without it the prism cannot dispersed the white light.