Multiple choice question XVII — task. Science CBSE, Class 9.

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A sonar device on a submarine sends out a signal and receives an echo

$5\ s$ later. Calculate the speed of sound in water if the distance of the object from the submarine is

$3625\ m$ .

$1550\ ms^{-1}$
$1450\ ms^{-1}$
$1350\ ms^{-1}$
$1250\ ms^{-1}$

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