Question

what is meant by disperson of light ?​

Answer 1

Answer:

Dispersion of Light' can be defined as the splitting of white light when it passes through a glass prism into its constituent spectrum of colors (i.e. violet, indigo, blue, green, yellow, orange and red). Dispersion figuratively means 'distribution' and hence that's exactly what is happening in the picture above.

Answer 2

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$\implies$The white light is composed of seven different colours, seen in a rainbow as a spectrum. The process by which white light breaks into its components is known as dispersion. Dispersion can be seen on transparent scales, CDs, water droplets, oil films, etc.

In a laboratory, prism is used to disperse light. A prism is a transparent medium. The phenomena of dispersion was first observed by Sir Isaac Newton. He found that when a ray of sunlight falls on one face of a prism and emerges from its other face, it splits into a band of seven colours.

A similar phenomenon is evident in the formation of a rainbow. The rainbow forms when white light from the sun falls on water droplets hanging in the air (after rain) and splits into seven colours.

We can also produce a spectrum easily in a room with the help of a plane mirror and water.

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