波长
半波长的两倍。
对于等截面介质或平面波，波长 \( \lambda \) 与波速 \( C \) 和频率 \( f \) 的关系为 —
\begin{align} \label{eq:12701a} \lambda = \frac{C}{f} \end{align}
Wavelength
Twice the half wavelength.
For a prismatic medium or plane wave, the wavelength \( \lambda \) is related to the wave speed \( C \) and the frequency \( f \) by —
\begin{align} \label{eq:12701a} \lambda = \frac{C}{f} \end{align}
Also see —
Half-wave resonator
Full-wave resonator