Question

What are the conditions to hear distinct echo?​

Answer 1

Answer:

The necessary conditions for hearing an echo can be, The distance between the sound source and the place where it is reflected from must not be less than 17m and the period between hearing the original sound and its echo should not be less than 0.1 of a second.

Answer 2

Answer:

The repetition of sound caused due to its reflection is called an echo.

The conditions required to hear an echo are:

The minimum distance between the source of sound and the reflecting body should be 17m.The loudness of sound should be sufficient so that it can be heard after its reflection.The reflector should have a large area for enough reflection of sound. And it should be hard too.

Explanation:

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