Doppler shift

Alternative definitions (1), class: vernacular (0)
Term: Doppler shift

Effect of the relative motion of a wave source (light, sound) and the observer. If the source is moving away, the wavelength is stretched (shifted toward lower frequencies). If the source is approaching, the wavelength is compressed (shifted toward higher frequencies). These effects, known as Doppler shifts, are in the case of light waves called redshift and blueshift, respectively.

Created 2023.04.16
Last Modified 2023.04.16
Contributed by Ryan McGranaghan