Definitions
There is 1 meaning of the phrase
Doppler Effect.
Doppler Effect - as a noun
Change in the apparent frequency of a wave as observer and source move toward or away from each other
Synonyms (Exact Relations)
doppler shiftExample Sentences
"The doppler effect is the change in frequency or wavelength of a wave as observed by an observer moving relative to the source of the wave."
"The sound of an ambulance siren changing as it passes by is an example of the doppler effect."
"A car engine producing a higher pitch as it approaches and a lower pitch as it moves away demonstrates the doppler effect."
"The doppler effect is used in radar and sonar to measure the velocity of an object."
"Astronomers use the doppler effect to analyze the motion of stars and galaxies."