Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Explain the dispersion of light through the prism

Explain the dispersion of light through the prism

Answers (1)

Dispersion of light -The splitting of white light into its constituent colors or wavelengths is called dispersion of light.

or

angular splitting of a ray of white light into a number of components and spreading in different directions is called diversion of light.

This phenomenon arises due to the fact that the refractive index varies with wavelength. 

When white light is incident on the prism it will split itself into its constituent colors as shown in the below figure.

The deviation is given as \delta =(\mu -1)A 

Since \ \mu _{violet}>\mu _{red} \\ So \ \ \delta _{violet}>\delta _{red}

  • Angular dispersion (\theta )- Angular separation between extreme colors

   i.e  \boldsymbol{\theta}=\boldsymbol{\delta}_{V}-\boldsymbol{\delta}_{R}=\left(\boldsymbol{\mu}_{V}-\boldsymbol{\mu}_{R}\right) \boldsymbol{A} .

It depends upon  \mu  and A.

Posted by

Safeer PP

View full answer

Similar Questions

Latest Question