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Refractive Index

nbsp;Why does...

Question

Why does light refract?
Why does light bends on refraction?

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Solution

Whenever light travels from one medium to another, refraction takes place at the interface of the two mediums. This happens because velocity of light is different in different medium. and there is a bending of light due to refraction.The extent of bending is dependent on the refractive index of the material and the wavelength of light. A prism uses this principle and disperses light.

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Q. Why does light bends while travelling from one medium to another?

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Q. Assertion :If refractive index of one medium is equal to refractive index of second medium, then beam does not bend at all. Reason: The bending of light does not depend on refractive indices of media.

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