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in Physics by (69.9k points)

A man is standing 25m away from a wall produces a sound and receives the reflected sound. 

1. Calculate the time after which he receives reflected sound ¡f the speed of sound is 350ms1 

2. Will the man be able to hear a distinct echo? Give a reason for your answer.

1 Answer

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by (72.7k points)
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Best answer

1.

2. Yes, because distance is more than 17m and time period is 0.14sec.

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