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Wavelength

A series of o...

Question

A series of ocean waves, each 5.0 m from crest to crest, move past the observer at a rate of 2 waves per second. The velocity of the ocean wave is

A

2.5 m/s

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B

5.0 m/s

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C

8.0 m/s

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D

10.0 m/s

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Solution

The correct option is D 10.0 m/s
The velocity of sound wave is given as

$V e l o c i t y = (w a v e l e n g t h (λ) \times f r e q u e n c y (ν)$

Therefore in this case

$V e l o c i t y = 5 \times 2 = 10 m / s$

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