Question

1 point

What is the name of the perceived change in a sound wave's frequency
due to motion between the observer and the source?
diffraction
Doppler effect
reflection
resonance

Answer 1

doppler effect

Step-by-step explanation:

took the quiz

Answer 2

the answer is doppler effect

Step-by-step explanation:

the doppler effect is the change in frequency of a wave in realation to an observer who is moving relative to the wave source. it is named after the austrian physicist christan doppler,who described the phenomenon in 1842. :) happy to help