Wavelength (λ)

Definition

Wavelength refers to the distance between two consecutive points on a wave that are in phase with each other. It is usually measured from crest to crest or trough to trough.

Related terms

Amplitude:

The maximum displacement or height of a wave from its equilibrium position.

Frequency:

The number of complete cycles or oscillations of a wave that occur in one second.

Diffraction:

The bending and spreading out of waves as they encounter an obstacle or pass through an opening.