Question

It is noticed that if the rate of clapping is 100per minute, the original sound can not be distinguished from the sound reflected from a wall. If the speed of sound is 330ms −1 , the distance of wall from the man is

Answer 1

Answer:

hy mate

Explanation:

Each clap must occur at the instant the echo of the last one returns. Claps occur every (3 seconds)/5 = 0.6 second. The sound travels to the wall and back, or 100+100 m = 200 m in this time (= 0.6 sec). Hence velocity (distance per unit of time) is (200 m)/(0.6 sec) = 333.33 m/sec.

4.3

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Answer 2

Answer:

99 m

Explanation:

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