Question

What is dispersion of light state its causes a rainbow is a example of it justify the statement with the labeled diagram?

Answer 1

dispersion of light means when white light or sunlight passes through a prism it splits up into constituent colours.due to its refractive index of prism is different for different colours of light.so different lights passing through a prism are deviated through different angles.

Answer 2

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Dispersion occurs because the refraction of different colours is different . This difference in the extent of bending of different colours of light causes dispersion of white light into its Constituent colours as they emerge out of prism. 2.) A rainbow is a natural spectrum appearing in the sky.