A person standing near a hill fires a gun and hears the echo after 1 second. If speed of sound in air is 340m/s. Find the distance between the hill and the person. *
Answers
Answer:
340 is the answer
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Answer:
170 m
Explanation:
The speed of the sound of bullet when it is fired in air =340 m/s
The person hears the echo after the time period = 1s
We know that Speed =Distance/Time
but here the sound gets again reflected back from the hill acting as a reflecting surface
= speed = distance(initial) + distance(reflected)/time
= speed = 2 distance /time
= 2 distance = speed× time
= 2 distance = (340×1) m [substituting the values]
= 2 distance = 340 m
= distance = (340/2)m
= distance = 170m (Ans)
Therefore, the distance in between the person who fires the bullet and the reflecting source is 170 m (Ans)
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