Doppler Effect Hard
Hardphysics
Observed frequency increases if:
Select the correct option:
Solution
Incorrect! Answer:
Source approaches observer
The Doppler Effect is the change in frequency of a wave due to the relative motion between the source and the observer.
- When the source approaches the observer, it 'catches up' to its own outgoing wave crests, effectively shortening the wavelength ahead of it.
- A shorter wavelength leads to a higher observed frequency (f′>f).
- Conversely, receding motion increases the wavelength, decreasing the frequency (Redshift).
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About This Question
- Subject
- physics
- Chapter
- oscillations and waves
- Topic
- doppler effect hard
- Difficulty
- Hard
- Year
- 2025
Solution
Correct Answer:
Source approaches observer
The Doppler Effect is the change in frequency of a wave due to the relative motion between the source and the observer.
- When the source approaches the observer, it 'catches up' to its own outgoing wave crests, effectively shortening the wavelength ahead of it.
- A shorter wavelength leads to a higher observed frequency (f′>f).
- Conversely, receding motion increases the wavelength, decreasing the frequency (Redshift).
This hard difficulty physics question is from the chapter oscillations and waves, covering the topic of doppler effect hard. It appeared in the 2025 exam.
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