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Question
Numerical problems:
A body vibrates 3000 times in one minute. If the velocity of sound in air is 330 ms-1, find
- Frequency of vibration
- Wavelength.
Answer in Brief
Solution
The velocity of sound in air, v = 330 ms-1
No.of vibrations in a minute = 3000 / minute.
Frequency, (Vibrations produced in one second)
υ = `3000/60` = 50 Hz
Wavelength, λ = `"V"/"υ"= 330/50` = 6.6 m
Wavelength, λ = 6.6 m
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