Answers

2016-04-09T17:20:07+05:30
It is created when a sound or signal is reflected causing a large number of reflection.
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it is called re-echoed sound.
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2016-04-09T17:21:58+05:30
Reveberation:- prolongation of a sound; resonance. Or in simple words u can say vibrance. Hope I helped u.. Plzz mark as the BRAINLIEST answer..
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the sound heard after reflection even the source has stopped producing the sound is called reverberation