Question

13. A man standing on a cliff claps his hand hears its echo after 1 sec. If sound is reflected from
another mountain and velocity of sound in air is 340 m/sec. Find the distance between the
man and reflection point in meters.
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Answer 1

Answer:

Let x be distance of person from each cliff

∴x+x=v×t=340×1=340

x=170m

Distance between two cliffs =2×170=340m