___ of light refers to the change in direction of a ray of light when it travels from one medium to another.

Refraction

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Reflection

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Dispersion

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None of these

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Solution

The correct option is A Refraction
When light rays travel from one medium to another, the direction of propagation, as well as the speed of the light rays, alter.The bending of the path of light rays when it travels from one medium to another is known as refraction of light.

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