Question

A heavy-duty truck produces a 50Hz sound wave. If the speed of sound in air is 336 m/s, what is the wavelength of this sound wave.

Answer 1

We can find the wavelength of the sound wave from the wave speed formula:

$$v=f\lambda,$$ $$\lambda=\dfrac{v}{f}=\dfrac{336\ \dfrac{m}{s}}{50\ Hz}=6.72\ m.$$

Answer:

$\lambda=6.72\ m.$