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A vibrator generates the waves of the ...

A vibrator generates the waves of the speed 330 m/s and wavelength 0 . 8 m. Then the frequency and time period are

A

264 Hz, 0.0037 sec

B

412.5 Hz, 0.0024 sec

C

412.5 Hz, 1.250 sec

D

264 Hz, 0.0030 sec

Text Solution

Verified by Experts

The correct Answer is:
B
Here, `v = 330"m s"^(-1), lambda = 0.8" m"`
`v = ? , T = ?`
Using `v = u lambda` or, `lambda = (v)/( lambda ) = (330)/(0.8)`
`v = 412.5" Hz"`
`T = (1)/( v) = (1)/(412.5) = 0.0024" s"`
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