why can you not hear the echo if you stand 10m away from a wall and shot towards it?
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because we need to be at least 17 m away from the wall to be able to hear the echo according to the laws of physics
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Heya !
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You can not hear the echo because
The human ear cannot hear an echo from the source sound if the delay is less than 1/15 of a second. so, since the velocity of sound is 343 m/s at a room temperature and we know the room temperature is 25°C the reflecting object should be more than 11.3 m from the sound source at this temperature for an echo to be heard by a person at the source. so , sound will not hear unless the minimum distance would be covered .
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You can not hear the echo because
The human ear cannot hear an echo from the source sound if the delay is less than 1/15 of a second. so, since the velocity of sound is 343 m/s at a room temperature and we know the room temperature is 25°C the reflecting object should be more than 11.3 m from the sound source at this temperature for an echo to be heard by a person at the source. so , sound will not hear unless the minimum distance would be covered .
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Anonymous:
is it copied??
copied from this site
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