Question

defination of rarefractoin​

Answer 1

Rarefaction is the reduction of an item's density, the opposite of compression. Like compression, which can travel in waves, rarefaction waves also exist in nature. A common rarefaction wave is the area of low relative pressure following a shock wave.

Answer 2

❣❣ANSWER❣❣

$<b>Refraction is the phenomenon of light being deflected in passing rays obliquely from one medium to another.$

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