Which phenomenon explains the change in frequency of a wave in relation to the observer's motion?
Practice Questions
1 question
Q1
Which phenomenon explains the change in frequency of a wave in relation to the observer's motion?
Doppler effect
Interference
Diffraction
Refraction
The Doppler effect describes the change in frequency (and wavelength) of a wave in relation to an observer moving relative to the wave source.
Questions & Step-by-step Solutions
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Q
Q: Which phenomenon explains the change in frequency of a wave in relation to the observer's motion?
Solution: The Doppler effect describes the change in frequency (and wavelength) of a wave in relation to an observer moving relative to the wave source.
Steps: 7
Step 1: Understand that waves can be sound waves, light waves, or any type of wave.
Step 2: Know that frequency is how often a wave occurs in a certain time period.
Step 3: Recognize that the observer is the person or device detecting the wave.
Step 4: Learn that the motion of the observer can change how they perceive the frequency of the wave.
Step 5: Identify that when the observer moves towards the wave source, the frequency appears higher.
Step 6: Understand that when the observer moves away from the wave source, the frequency appears lower.
Step 7: Conclude that this change in frequency due to motion is called the Doppler effect.
