$$\lambda = v/f$$
Where:
- \(\lambda\) is the wavelength (in meters)
- \(v\) is the wave speed (in meters per second)
- \(f\) is the frequency (in hertz)
In this case, the wave has a frequency of 30Hz. Assuming the wave is traveling through air at room temperature (about 20°C), its velocity is approximately 343 meters per second.
Plugging in these values, we get:
$$\lambda = 343m/s / 30Hz = 11.43m$$
Therefore, the wavelength of the wave is approximately 11.43 meters.