c
(c) Energy of particle is maximum at resonant frequency i.e., \({\omega _2} = {\omega _o}\). For amplitude resonance (amplitude maximum) frequency of driver force \(\omega = \sqrt {\omega _o^2 - \left(\frac{b}{2m} \right) ^2} \)
The amplitude and velocity resonance occurs at the same frequency.
At resonance,i.e. \({\omega _1} = {\omega _o}\) and \({\omega _2} = {\omega _o}\) the amplitude and energy of the particle would be maximum.