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A man is standing between two parallel c...

A man is standing between two parallel cliffs and fires a gun. If he hears first and second echoes after 1.2 s and 3.6 s respectively, the distance between the cliffs is (velocity of sound in air = `340 m s^(-1)`)

A

1190 m

B

850 m

C

595 m

D

816 m

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