why do we hear an echo only from the surface which is far away ?
why can you not hear the Echo if you stand away from a wall and Shout towards it ?
why can you not hear the Echo if you stand away from a wall and Shout towards it ?
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Explanation:
In open areas we are not able to hear the echo because the sound will not get any medium to collid and come back.......... Thus , because of this the echo is heard....
If we stand away from a wall or shout towards it , we will not be able to hear the echo....
It is so because , the sound collides and comes back....
Thus , the echo is not heard.......
MORE INFORMATION:-
To calculate the distance between two objects ;
during echo , the formula is :-
2d = V × T
When echo is not there , then ,
d = V × T
here ,
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