Question

4) The following observations are made by a man standing in front of a vertical cliff:

(i) He hears the echo of the gun fired by him after 3 s.

(ii) He hears the echo of the gun fired by him after 2.5 s; when he moves 82.5 m closer to the cliff.

Use these observations to find the:

(a) distance between the man and the cliff in the first case.

(b) velocity of sound.​

Answer 1

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