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A ship transmits ultrasonic signal waves to detect an iceberg floating at a distance of 3.6 km. The waves strike the iceberg, are reflected back, and are detected by the detector installed in the ship. The speed of ultrasonic waves is 1470 m $s^{-1}$. What is the time delay between the transmission and the reception of the ultrasonic waves ?

1 Answer

Ans : (D)
answered May 30, 2014 by thanvigandhi_1

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