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  • Help me please, In case of a forced vibration, the resonance wave becomes very sharp when the

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

  • Option 1)

    Restoring force is small

  • Option 2)

    Applied periodic force is small

  • Option 3)

    Quality factor is small

  • Option 4)

    Damping force is small

 

Answers (1)

best_answer

Less damping force gives a taller and narrower resonance peak.

 

Resonance -

If we vary the angular frequency \omega of the applied force,this amplitude changes and becomes maximum.

\omega = \omega '= \sqrt{\omega {_{0}}^{2}-\frac{b^{2}}{4m^{2}}}

- 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.

Posted by

prateek

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