Why can you not hear the echo if you stand 10 m away from the wall and shout toward it
Answers
heya!
This is because of the minimum distance to hear an echo (which is 17m).
Suppose, speed of sound in air is 340m/s.
The minimum time taken by an average human to hear an echo is 0.05 s
Since,
S = v*t
Wherein S is distance, v is speed (or) velocity, t is time
Therefore,
S = 340*0.05
S = 17m
Therefore we can conclude that the minimum distance to hear an echo is 17m.
But all of this also depends on the quality of sound (e.g. It would be hard to hear the echo of chirps of birds compared to a gunshot)
Answer:
This is because of the minimum distance to hear an echo (which is 17m).
Suppose, speed of sound in air is 340m/s.
The minimum time taken by an average human to hear an echo is 0.05 s
Since,
S = v*t
Wherein S is distance, v is speed (or) velocity, t is time
Therefore,
S = 340*0.05
S = 17m
Therefore we can conclude that the minimum distance to hear an echo is 17m.
But all of this also depends on the quality of sound (e.g. It would be hard to hear the echo of chirps of birds compared to a gunshot)