In case of a forced vibration, the resonance wave becomes very sharp when the
Restoring force is small
Applied periodic force is small
Quality factor is small
Damping force is small
Less damping force gives a taller and narrower resonance peak.
Resonance -
If we vary the angular frequency of the applied force,this amplitude changes and becomes maximum.
- wherein
When this condition is fulfilled it is caused resonance.
Option 1)
Restoring force is small
This is incorrect.
Option 2)
Applied periodic force is small
This is incorrect.
Option 3)
Quality factor is small
This is incorrect.
Option 4)
Damping force is small
This is correct.
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