Wave Speed

The wave equation links speed, frequency and wavelength:

$v = f\lambda$

where $v$ is the wave speed (m/s), $f$ is the frequency (Hz), and $\lambda$ is the wavelength (m).

The speed of a wave depends on the medium, not on the frequency or amplitude. When a wave enters a new medium, its speed and wavelength change, but its frequency stays the same.

Speed of sound in air $\approx 340$ m/s. Speed of light in a vacuum $= 3.0 \times 10^8$ m/s.