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Question
The wavelength of the vibrations produced on the surface of water is 2 cm. If the wave velocity is 16 ms-1, calculate:
- no. of waves produced in one second
- time required to produce one wave.
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Solution
wavelength = λ = 2 cm = 0.02 m
Wave velocity = v = 16 ms-1
Frequency = f = ?
We know = v = λf
f = `"v"/lambda`
f = `16/0.02` = 800 Hz
⇒ 800 waves are produced in one second.
Time period = T = `1/"f"`
T = `1/800`
T = 0.00125s
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