Assertion: doppler effect | /r/Causes | change
Facets:
value: in wavelength
type: OTHER
value: in frequency
type: OTHER
value: in the frequency of a wave
type: OTHER
Source sentences:
text: The Doppler effect, or Doppler shift, occurs when the movement of an observer relative to a source (or vice versa) causes a change in wavelength or frequency.
text: The Doppler effect, or Doppler shift, occurs when the movement of an observer relative to a source (or vice versa) causes a change in wavelength or frequency.
text: The Doppler effect, or Doppler shift, occurs when the movement of an observer relative to a source (or vice versa) causes a change in wavelength or frequency.
text: The Doppler effect, or Doppler shift, occurs when the movement of an observer relative to a source (or vice versa) causes a change in wavelength or frequency.
text: The Doppler effect, named after Austrian physicist Christian Doppler who proposed the theory in 1842, is a well-documented phenomenon in physics that causes a change in the frequency of a wave as the source moves closer to the observer.
text: The Doppler effect, or Doppler shift, occurs when the movement of an observer relative to a source (or vice versa) causes a change in wavelength or frequency.
text: The Doppler effect, or Doppler shift, occurs when the movement of an observer relative to a source (or vice versa) causes a change in wavelength or frequency.
text: The Doppler effect, or Doppler shift, occurs when the movement of an observer relative to a source (or vice versa) causes a change in wavelength or frequency.
text: The Doppler effect, or Doppler shift, occurs when the movement of an observer relative to a source (or vice versa) causes a change in wavelength or frequency.