A boy stands between the two walls and claps his hands as shown below: – InterviewSolution

1.	A boy stands between the two walls and claps his hands as shown below: If x is less than 60 m and the time between the first and the second echo is 0.25 s, then calculate the distance x. (Velocity of sound in air is 344 ms−1)
Answer» A boy stands between the two walls and claps his hands as shown below: If $x$ is less than $60 m$ and the time between the first and the second echo is $0.25 s$ , then calculate the distance $x$ . (Velocity of sound in air is 344 $m s^{- 1}$ )

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