Question

what is mean by refraction​

Answer 1

Answer:

A change of direction that light undergoes when it enters a medium with a different density from the one through which it has been traveling is called refraction.

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Answer 2

The turning or bending of any wave, such as a light or sound wave, when it passes from one medium into another of different density. The ability of the eye to bend light so that an image is focused on the retina.