Q. 594.1( 12 Votes )

What is the difference between a compression and a rarefaction in a sound wave? Illustrate your answer with a sketch.

Answer :

Compression : Particles of the medium are pushed close to each other. It is a region of high density and pressure.

Rarefaction : Particles of the medium move away It is a region of low density and pressure.

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Sound travels in air if

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