Question

State refraction and what are the cases of refraction​

Answer 1

Answer:

Case 1: When light rays travel from optically rarer medium to denser medium then they bend towards normal. In this case angle of refraction is smaller than angel of incidence. When light rays travel from air into glass or from air into water, it bends towards normal

Explanation:

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Answer 2

Answer:

change in the direction of light when it passes from one medium to another of a different density is called refraction

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