What is the term for the change in frequency of a wave due to relative motion between source and observer?
A
Doppler effect
B
Reflection effect
C
Interference effect
D
Resonance effect
Correct Answer: Option A — Doppler effect
Explanation:
The Doppler effect describes the apparent change in frequency of a wave, such as sound or light, as perceived by an observer when the source...
The Doppler effect describes the apparent change in frequency of a wave, such as sound or light, as perceived by an observer when the source and observer move relative to each other, either approaching or receding.