Question

Briefly explain the cause of dispersion​

Answer 1

Dispersion occurs due to the different degrees of refraction experienced by different colours of light. Light of different colours may travel with the same speed in a vacuum, but they travel at different speeds in some refracting medium.

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Answer 2

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Dispersion occurs due to the different degrees of refraction experienced by different colours of light.

Light of different colours may travel with the same speed in a vacuum, but they travel at different speeds in some refracting medium.