Question

what is dispersion of light​

Answer 1

Answer:

In optics, dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency. Media having this common property may be termed dispersive media. Sometimes the term chromatic dispersion is used for specificity

Answer 2

Answer:

The dispersion of light is the phenomenon of splitting of a beam of white light into its seven constituent colours when passed through a transparent medium. It was discovered by Isaac Newton in 1666. ... Thus the spectrum is a band of seven colours which is obtained by splitting of white light by a glass prism.