A man is standing between two parallel cliffs and fires a gun. If he hears the first and second echoes after 1.5 s and 3.5 s respectively, the distance between the cliffs is (velocity of sound in air = 340 m s1)
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The first answer is 510 meter distance.
The second answer is 1190 meter distance.
The second answer is 1190 meter distance.
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