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A submarine emits a sonar pulse, which r...

A submarine emits a sonar pulse, which returns from an underwater cliff in 1.02 s. I the speed of sound in salt water is 1531 m`s^(-1)`? how far away is the clift?

Text Solution

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Here, total time - 1.02 speed of sound - 1531 `ms^(-1)` distance between submarine and cliff da?
Now,
Total distance covered by sonar pulse =speed of sound X total time
`therefore 2d=vt`
`therefore d=(vt)/(2)`
`=(1551 x 1.02)/(2)=780.81m`
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