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CBSE Class 9 Answered

Why do series of compressions and rarefactions take place?
Asked by Udhbhav Gupta | 02 Jan, 2012, 03:25: PM
answered-by-expert Expert Answer
have you seen spring/slinky?
notice it . produce jerk  at one end..then things will be clear.
this is property of any elastic medium.....if we disturb it at one place it will always try to regain its original shape and size...so in doing so a successive compression and ratrefaction is already produced.
Answered by | 03 Jan, 2012, 10:46: AM

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