The process of separation of white light into its component colours while passing through a medium is given a specific name. What is it called?

1. White light contains many colours, each with a different refractive index in the medium. 2. The chapter defines: the process of separation of light into its component colours while passing through a medium is called the dispersion of light. 3. Refraction is merely the bending; total internal reflection keeps light in the denser medium, so those distractors are wrong. 4. Hence the phenomenon is dispersion. _Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 6 "Refraction of Light", p.86_