Wavelength

• Wavelength is the distance between consecutive corresponding points of same phase, such as crests and trough.
• It is a characteristic of both travelling and standing waves.
• Wavelength is inversely related to frequency means the higher the frequency of the signal, the shorter the wavelength.





• Wavelength is commonly designated by the Greek letter lambda (λ).

Transverse wave

Longitudinal wave

• In the case of a longitudinal wave, a wavelength measurement is made by measuring the distance from a compression to the next compression or from a rarefaction to the next rarefaction.