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

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

(a) Applied periodic force is small

(b) Quality factor is small

(c) Damping force is small

(d) Restoring force is small

The question was asked in final exam.

This key question is from Harmonic Motion topic in division Oscillations of Engineering Physics I

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Correct option is (c) Damping force is small

To explain: Lesser the damping force, more sharp is the resonance peak.

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