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1038 m
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1083 m
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2076 m
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2706 m
A person clapped his hands near a cliff and heard echo after 6 s. The distance of the cliff from the person is: [take v = 346 ms-1]
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CONCEPT:
Calculation:
Given that,
The time taken by the echo to reach back to the source (t)= 6s.
Velocity of the sound (v) = 346 m/s.
Distance between person and cliff (d) = v x ta
As sound travels back and forth to form an echo and hence time is twice.
Now dividing the time take by 2 we get actual time (Ta)= 6/2 ⇒ 3
Therefore, the distance from person to the cliff (d) = 346 x 3 ⇒ 1038 m.
The distance between the person and the cliff is 1038 meters.