Forced Oscillation Resonance
Mediumphysics
Maximum amplitude in forced oscillation occurs when driving frequency equals?
Select the correct option:
Solution
Incorrect! Answer:
Natural frequency
- Forced Vibration: Occurs when a system is subjected to a periodic external driving force F(t)=F0cos(ωdt).
- Natural Frequency ((\omega_0)): The frequency at which the system oscillates if left alone after being disturbed.
- Resonance: A phenomenon that occurs when the driving frequency matches the natural frequency (ωd=ω0).
- Outcome: At resonance, the driving force is in perfect phase with the velocity of the system, allowing for maximum energy transfer and resulting in maximum amplitude.
- Note: If damping is present, the peak amplitude occurs at a frequency slightly lower than ω0, but 'natural frequency' is the standard ideal answer.
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About This Question
- Subject
- physics
- Chapter
- oscillations and waves
- Topic
- forced oscillation resonance
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
Natural frequency
- Forced Vibration: Occurs when a system is subjected to a periodic external driving force F(t)=F0cos(ωdt).
- Natural Frequency ((\omega_0)): The frequency at which the system oscillates if left alone after being disturbed.
- Resonance: A phenomenon that occurs when the driving frequency matches the natural frequency (ωd=ω0).
- Outcome: At resonance, the driving force is in perfect phase with the velocity of the system, allowing for maximum energy transfer and resulting in maximum amplitude.
- Note: If damping is present, the peak amplitude occurs at a frequency slightly lower than ω0, but 'natural frequency' is the standard ideal answer.
This medium difficulty physics question is from the chapter oscillations and waves, covering the topic of forced oscillation resonance. It appeared in the 2025 exam.
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