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
$\lambda = \frac{c}{f}= \frac{340 m/s}{23 Hz}=14.8 m$