Question

What is disparation of light

Answer 1

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

Sir Isaac Newton set up an experiment, he took a triangular prism and shone the white light or visible light through it.

When the white light traveled through the prism it broke down into its seven constituents or known as VIBGYOR(Violet , Indigo ,Blue ,Green, Yellow, Orange ,Red).

This breaking of light into its seven constituents is known as Dispersion.

The reason for the Dispersion is varying wavelength of white light constituents i.e. blue light has minimum wavelength(390–455 nano-meter) so it refracts more in the prism and red light has maximum wavelength(622–780 nano-meter) so it refracts less.