Question

Sound waves travel at approximately 340 m/s. what is the wavelength of a sound with a frequency of 23 hz (near the low end of our hearing range)?

Answer 1

The relationship between speed v, frequency f and wavelength
`\lambda` of a wave is:

`c=f \lambda`

In our problem, the speed is the speed of sound: c=340 m/s, while the frequency of the wave is f=23 Hz, so the wavelength is

`\lambda = (c)/(f)= (340 m/s)/(23 Hz)=14.8 m`