Which of the following best explains how Doppler-effect is used to determine relative velocity?
A) Analysis of radiated light waves
B) Frequency shift analysis
C) Bouncing sonar signals
D) Measuring amplitude deterioration

Question

Quizplus · Accepted Answer

The Doppler effect involves a change in frequency or wavelength of a wave in relation to an observer who is moving relative to the wave source. This principle is used to determine relative velocity by analyzing the frequency shift of waves (such as sound or light) as they are emitted from a moving object.

Which of the Following Best Explains How Doppler-Effect Is Used