Question

Answer the following in brief.
1. What happens to light when it gets dispersed?
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Answer 1

The splitting of white light into its constituent colours is called dispersion. The light that gets refracted forms a spectrum. The angle at which the different colours get deviated is different for different colours. Red gets less deviated while violet is deviated the maximum forming the lower part of the spectrum.

Example: An arch of rainbow in the sky is due to the dispersion of colours.

Answered By=shreyash. .......

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Answer 2

When light gets dispersed, it is spread into its full spectrum of wavelengths.

• Light gets spread to the constituent colors when it gets dispersed.
• For example, rainbow occurs because white light gets dispersed to its constituent colours which red, orange, yellow, green, blue, indigo and violet.
• The dispersion phenomenon shows what white light is actually made up from.
• The refractive index of the surface and the wavelength of the light are the factors which determine the dispersion of light.