Question

What is dispersion of light ? Explain it with a ray diagram. Explain the cause of dispersion of light.

Answer 1

Dispersion. Visible light is actually made up of different colors. Each color bends by a different amount when refracted by glass. That's why visible light is split, or dispersed, into different colors when it passes through a lens or prism.

Dispersion occurs because the refraction of different colors is different. ... Hence the refractive index of the medium is largest for the violet colour and least for the red colour.

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Answer 2

The phenomenon of splitting of white light into it's component colors on passing through a refracting medium is called Dispersion of light

The dispersion of white light occurs because different colours of light bend through different angles with respect to the incident ray, as they pass through a prism. The red light bends the least while the violet