Doppler shift

alt label
Doppler effect
dcterms modified equal to or less than 2020-11-03T20:18:43.377Zequal to or more than 2020-11-03T20:18:43.377Z
broader original
401 original
definition 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.
narrower original
401 original original
401 original
Resource original
Concept original
contributor AAS_Frey.Katie original