The splitting up of white light into seven colours on passing through a glass prism is called:(a) refraction (b) deflection (c) dispersion (d) scattering

(c) dispersion

Explanation

The phenomenon of splitting white light into its components colours (violet, indigo, blue, green, yellow, orange, and red) while passing through a prism is known as the dispersion of light.

The cause of the dispersion of light through the prism is because white light is a mixture of seven different colours and they get refracted (bend) at different angles in the prism medium. So they get separated.