Question

torm.
Define the following
Echo.​

Answer 1

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Explanation:

When sound waves are reflected by a hard surface,the resulting effect is called an echo.

Answer 2

The echo:

Sound heɑrd ɑfter reflection from ɑ surfɑce is cɑlled echo. Just like heɑt or light, when sound fɑlls on ɑ surfɑce, it is pɑrtly reflected ɑnd pɑrtly ɑbsorbed.

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