In case of a forced vibration, the resonance wave becomes very sharp when theA. applied periodic force is smallB. quality factor is smallC. damping force is smallD. restoring force is small

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

1.	In case of a forced vibration, the resonance wave becomes very sharp when theA. applied periodic force is smallB. quality factor is smallC. damping force is smallD. restoring force is small
Answer» Correct Answer - C (c) In resonant vibrations of a body , the frequency of external force applied on the body is equal to its natural frequency . If on increasing and decreasing the frequency of external force from the natural frequency by a factor, the amplitude of vibrations reduces very much. In this case , sharp resonance will take place. But if it reduces by a small factor, then flat resonance will take place. The sharp and flat resonance will depend on damping present in the body execting resonant vibrations. Less the damping , greater will be sharpness.

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In case of a forced vibration, the resonance wave becomes very sharp when theA. applied periodic force is smallB. quality factor is smallC. damping force is smallD. restoring force is small

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