PROBLEM No 3.2 Class X / SSC-ΙI丨Chapter # 3 (A person hears the echo of his own sound from distant hill after 2 seconds. How far away is the person from the hill, if the speed of the sound is 330ms-1.)
A
person hears the echo of his own sound from distant hill after 2 seconds. How
far away is the person from the hill, if the speed of the sound is 330ms-1.
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