Environmental Sciences, asked by kesarapuprasad2542, 7 months ago

Explain the condition in which a person can or can't hear echo

Answers

Answered by harsh12364
6

The echo can not be heared if the distance between the sound source and the reflecting surface is less than 17 metres because the time between hearing the main sound and its echo will be less than 0.1 of a second , and the human ear can not distinguish between the two successive sounds .

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