Answers

2015-01-30T20:52:39+05:30
We know that vibrating object produce sound it can be spring or etc....when object moves outward it puches the air molecues creating the reagion of high pressure and when it inward it creates the region of low pressure. so like this sound waves move.
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2015-01-30T20:54:57+05:30

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Sound travels by disturbing air.
When the air molecules are disturbed transfer of energy takes place between the molecule and adjacent one.
This disturbance is accompanied by compression and rarefraction.
Sound waves that is produced by the disturbance of molecules of air are constituted of Amplitude,time period and frequency.
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