what do u understand by the terms compression and rarefactions
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Compression-- It is a that part of longitudional wave in which the particles of medium are closer to each other than nomal.
Rarefaction-- It is a that part of longitudional wave in which particles of medium are far away from each other than normal.
Rarefaction-- It is a that part of longitudional wave in which particles of medium are far away from each other than normal.
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