The wavelength is related to the velocity of the wave and its frequency by the equation:
[tex]\lambda=\frac{v}{f}[/tex]In this case the velocity is 344 m/s and the frequency is 63 kHz, then we have:
[tex]\lambda=\frac{344}{63\times10^3}=0.0055[/tex]Therefore, the wavelength is 0.0055 m
