A boy shouts loudly into an empty well that is 33m deep. After how lon – InterviewSolution

1.

A boy shouts loudly into an empty well that is 33m deep. After how long will he hear the echo? (Speed of sound in air 330 m/s)

Answer»

Just apply the formula

EXPLANATION:

TIME = 2(DISTANCE)/ medium

Time = 66/330

Time = 1/5 SECOND

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