Describe how you could demonstrate that white light is composed of a number of colours.

The scientist who first demonstrated that sunlight is composed of seven colours is

How can you prove that white light is a mixture of all colours ?

White light is mixer of how many colours________

Assertion : Colours can be seen in thin layers of oil on the surface of water. Reason : White light is composed of several colours.

Assertion : Colours can be seen in thin layers of oil on the surface of water. Reason : White light is composed of several colours.

Assertion : Brilliant colours are seen in thin layer of oil on the surface of water . Reason : White light is composed of several colours .