Dispersion

Dispersion is the Seperation of white light into its 7 different coloured lights due to the change in speed of the coloured lights when they cross the boundary between two mediums of different optical density causing each light to bend at a slightly different angle

Person 1: why did that prism just turn the light into rainbow?
Person 2: dispersion

Dispersion

Dispersion is the Seperation of white light into its 7 different coloured lights due to the change in speed of each of the lights when they cross the boundary between two mediums of different optical density, causing each light to bend at a slightly different angle.

Person 1: why did that prism turn the light into rainbow?
Person 2: dispersion