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Home  >>  JEEMAIN and AIPMT  >>  Physics  >>  Class11  >>  Oscillations
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When a damped spring mass system is forced into oscillations at different frequencies it resonates (amplitude increases and peaks when compared to input amplitude) at its damped natural frequency. For such systems for the same input amplitude, the resonance is more when

a.       Damping is high b.      Damping is low  c.       Does not depend on damping d.      None of the above
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As the damping reduces the oscillation tend not to die.
When the damping is zero the spring mass system pumps in every back to the external forcing sources that the combined system resonate at highest amplitude.
When certain damping is introduced the energy due to the resonance is dissipated away and thus the amplitude of resonance reduces.
Hence b is the correct answer.
answered Dec 10, 2013 by meena.p

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