Waves

Phase Velocity

Velocity at which the phase of a wave propagates through space.

Variables

v_p
Phase velocity
Speed of phase propagation
m/s
ω
Angular frequency
Radians per second
rad/s
k
Wave number
Radians per meter
rad/m

Derivation

From wave equation y = A sin(kx - ωt), phase velocity v_p = ω/k = fλ.

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