Question

What is the cause of refration of light?​

Answer 1

Correct answer

Light refracts whenever it travels at an angle into a substance with a different refractive index (optical density). This change of direction is caused by a change in speed. ... When light travels from air into water, it slows down, causing it to change direction slightly. This change of direction is called refraction.

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Answer 2

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Light refracts whenever it travels at an angle into a substance with a different refractive index (optical density). This change of direction is caused by a change in speed. When light travels from air into water, it slows down, causing it to change direction slightly. This change of direction results in refraction.

So mainly light refracts when light travels from one medium to another due to difference in viscosity.......

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