A) 150 m
B) 3 km
C) 1.5 km
D) 750 m
Correct Answer: C
Solution :
Let the depth of the sea \[=\text{ }x\] The time taken by sound wave to go down and then return to the ship = 2 s \[\therefore \] The distance travelled by the sound wave \[=\text{ }x\div x\text{ }=\text{ }2x\] Speed of sound (v) = 1.5 km/s As distance \[=speed\times time,\text{ }2x=1.5\times 2,\text{ }x=1.5\text{ }km\]You need to login to perform this action.
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