Frae Wikipedia
Lowp tae: navigation, rake
Wavelenth o a sine wave, λ, can be measured atween ony twa pynts wi the same phase, such as atween crests, or troughs, or correspondin zero crossins as shawn.

In pheesics, the wavelenth o a sinusoidal wave is the spatial period o the wave—the distance ower which the wave's shape repeats.[1]

References[eedit | eedit soorce]

  1. Hecht, Eugene (1987). Optics (2nd ed.). Addison Wesley. pp. 15–16. ISBN 0-201-11609-X.