Question
The Doppler effect is ____
Answer
The Doppler effect is a shift in the perceived frequency of a sound compared to the actual frequency of the emitted sound when the source of the sound and its detector are moving relative to one another.
Note: Sound propagates through all forms of matter (but not a vacuum).
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____ waves have oscillations of wave particles perpendicular to the direction of wave propagation .
Transverse waves have oscillations of wave particles ____ to the direction of wave propagation .
____ waves have oscillations of wave particles parallel to the direction of wave propagation.
Longitudinal waves have oscillations of wave particles ____ to the direction of wave propagation.
____ in a wave refers to how far a point is from the e quilibrium position .
Displacement ( x ) in a wave refers to how far a point is from the ____.