PlanetPhysics/Velocity of Wave

The monochromatic [[../CosmologicalConstant2/|wave]] is the fundamental model of the wave [[../CosmologicalConstant/|motion]].\, The vibration in every point along the way of wave motion is harmonic and has the same period time $T$ and the frequency \,$f=\frac{1}{T}$.\, The wave length $\lambda$ of the wave motion is the displacement which the wave propagates in a period time with its [[../Velocity/|velocity]] $v$: $\lambda =vT=v/f$ Thus the [[../Formula/|formula]] $v=f\lambda$ is valid for the wave motion.