Sound waves of wavelength 3cm have a velocity of 336 m/s in air. What.
a is their frequency? Can this sound he heard by the human ear?
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no it cannot be heard by men
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The relation between wavelength, frequency and velocity are related as follows:
Wavelength= Velocity/Frequency
Here, wavelength= 3cm = 0.03m
Velocity= 336 m/s
Therefore, frequency = Velocity/Wavelength
= 336/0.03 = 11200 per second or Hertz(Hz).
This sound can be heard by the human ear. It is because human ear can hear sound ranging from 20-20000 Hertz(Hz). As this lies within the range, humans can perceive it.
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