what is eco?can we hear an echo if the distance between the source of sound and a reflecting surface is 20m?explain why
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the bouncing or coming back of sound when it strick to a wall, mountain etc. is called echo.
if the frequency of a soundwave is more than it is possible that we can hear the echo from 20m also.
if the frequency of a soundwave is more than it is possible that we can hear the echo from 20m also.
ReetChauhan1112:
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