Question

what is rarefraction in physics​

Answer 1

Answer:

Refraction, in physics, the change in direction of a wave passing from one medium to another caused by its change in speed. For example, waves in deep water travel faster than in shallow. ... The speed of sound waves is greater in warm air than in cold.

Explanation:

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Answer 2

Answer:-

Refraction is the bending of light (it also happens with sound, water and other waves) as it passes from one transparent substance into another. This bending by refraction makes it possible for us to have lenses, magnifying glasses, prisms and rainbows.

OR

Refraction, in physics, the change in direction of a wave passing from one medium to another caused by its change in speed. For example, waves in deep water travel faster than in shallow. ... The speed of sound waves is greater in warm air than in cold.

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