Assertion: doppler effect | /r/UsedFor | refer to the change
Facets:
value: in pitch of a sound
type: OTHER
value: in other words
type: OTHER
value: in wave frequency
type: OTHER
Source sentences:
text: Definition: Doppler Effect refers to the change in wave frequency during the relative motion between a wave source and its observer.
text: In other words, the doppler effect refers to the change in pitch of a sound due to the motion either of the source or of the listener.