Final answer:
The Doppler effect is the change in wave frequency due to relative motion of the source and observer in physics.
Explanation:
The Doppler effect is the apparent change in frequency of a wave when the observer and the source of the wave move relative to each other. This phenomenon occurs in sound waves and light waves. An example of the Doppler effect is the change in pitch of a siren as an ambulance passes by.
Learn more about Doppler Effect here:
https://brainly.com/question/44077279
