## College Physics (4th Edition)

The wavelength of a sound wave with a frequency of $1.0\times 10^5~Hz$ in an air temperature of $15^{\circ}C$ is $3.4~mm$
We can find the speed of sound at a temperature of $15^{\circ}C$: $v = (331+0.60~T)~m/s$ $v = [331+(0.60)~(15^{\circ}C)]~m/s$ $v = 340~m/s$ We can find the wavelength of a sound wave with a frequency of $1.0\times 10^5~Hz$: $\lambda = \frac{v}{f}$ $\lambda = \frac{340~m/s}{1.0\times 10^5~Hz}$ $\lambda = 3.4\times 10^{-3}~m$ $\lambda = 3.4~mm$ The wavelength of a sound wave with a frequency of $1.0\times 10^5~Hz$ in an air temperature of $15^{\circ}C$ is $3.4~mm$