A man, standing between two cliffs, claps his hands and starts hearing – McqOptions

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1.	A man, standing between two cliffs, claps his hands and starts hearing a series of echoes at intervals of one second. If the speed of sound in air is 340 ms-1, the distance between the cliffs is [KCET 2004]
A.	340 m
B.	1620 m
C.	680 m
D.	1700 m
Answer» B. 1620 m

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