What is dispersion of light?

Splitting up of white light into seven different colours on passing through a transparent medium is called Dispersion of Light.


Rainbow- it is a natural phenomena in which sunlight is split up into different colors


Is Sunlight white or coloured?

Sunlight appears white and hence, it is called white light.

But actually made up of 7 colours

V Violet
I Indigo
B Blue
G Green
Y Yellow
O Orange
R Red


Activity to see dispersion of light

We follow these steps

  • Take a glass bowl
  • Fill it with water
  • Put mirror in it
  • Place it near the window so that sunlight falls on it
  • it is reflected on wall
  • We see different colors


Note: This is possible because mirror in water forms a prism

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.