A boat at anchor is rocked by waves of v...

A boat at anchor is rocked by waves of velocity 25m/s, having crests 100 m apart. The boat bounches up once in every …………. .

`4.0` s

2500 s

0.25 s

75 s

Text Solution

Verified by Experts

The correct Answer is:

`4.0` s
`lambda` = distance between crests = 100 m frequency `v = (25)/(100) = (1)/(4) s^(-1)`
Therefore , the crests react the boat once every 4 seconds .

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