Home
Class 10
PHYSICS
From incident white light how will you o...

From incident white light how will you obtain white emergent light by making use of two prisms ?

Text Solution

Verified by Experts

Take a prism. Allow white light to fall on it.
Obtain a spectrum.
Take a second identical prism. Place it parallel to the first prism in an upside down position with the first prism
Allow the colours of the spectrum to pass through the second prism.
Obtain the beam of light emerging from the other side of the second prism.

The beam of light emerging from the other side of the second prism is a beam of white light.
Explanation `:` White light is made up of seven coloures. The first prism produces dispersion of white light while the second prisem combines light of different colours to produce white light again. The net deviation of a ray of light is zero.
Promotional Banner

Similar Questions

Explore conceptually related problems

If white light is used in a biprism experiment, then

Why do components of incident white light splits into a spectrum while passing through a glass prism?

When white light source is used for obtaining interference, the central fringe is ………………. .

Out of all colours making the white light, which one will deviate the most while it passes through a prism?

When a white light passes through a hollow prism then

What happens to white light when it passes through a prism?