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In case of a forced vibration, the resonance peak becomes very sharp when the ___________

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in Engineering Physics I by (558k points)
In case of a forced vibration, the resonance peak becomes very sharp when the ___________

(a) Damping force is small

(b) Restoring force is small

(c) Applied periodic force is small

(d) Quality factor is small

I got this question in an international level competition.

This intriguing question originated from Wave Motion in portion Waves of Engineering Physics I

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Best answer
Right answer is (a) Damping force is small

Best explanation: When the damping force is small, the resonance peak is high and narrow.

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