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What is the Doppler effect?
What is the Doppler effect?
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Practice Questions
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What is the Doppler effect?
Change in frequency due to motion
Change in amplitude due to distance
Change in speed due to temperature
Change in wavelength due to pressure
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The Doppler effect refers to the change in frequency 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: What is the Doppler effect?
Solution:
The Doppler effect refers to the change in frequency of a wave in relation to an observer moving relative to the wave source.
Steps: 6
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Step 1: Understand that waves can be sound waves or light waves.
Step 2: Know that the frequency of a wave is how often the wave occurs in a certain time.
Step 3: Imagine a source of sound, like a siren on an ambulance, moving towards you.
Step 4: As the ambulance approaches, the sound waves get compressed, making the sound higher in pitch (frequency).
Step 5: When the ambulance moves away from you, the sound waves stretch out, making the sound lower in pitch (frequency).
Step 6: This change in pitch as the source moves is called the Doppler effect.
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