If a person shouts near a wall and heard the echo after 10 sec.What is the distance of the wall from the person?(take speed of sound=346 m/s)

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Solution

Speed of sound,v=346m/s

T=10sec

Distance travelled by the sound=v×t=346×10=3460m

In 10s sound has to travel twice between person and wall.

Distance between person and wall= $\frac{3460}{2}$ =1730m.

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A person shouts near a wall and heard the echo after 10 sec. What is the distance of the wall from the person? (take speed of sound= $346 m s^{- 1}$ )
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If a person shouts near a wall and heard the echo after 10 sec.What is the distance of the wall from the person?(take speed of sound=346 m/s)

Speed of sound,v=346m/s T=10sec Distance travelled by the sound=v×t=346×10=3460m In 10s sound has to travel twice between person and wall. Distance between person and wall=34602=1730m.

Speed of sound,v=346m/s

T=10sec

Distance travelled by the sound=v×t=346×10=3460m

In 10s sound has to travel twice between person and wall.

Distance between person and wall= $\frac{3460}{2}$ =1730m.