A particle of mass m is attached to a spring of spring constant ‘k’ and has a natural frequency ωo. An external force F(t) proportional to cos⁡ωtω≠ωo is applied to the oscillator. The maximum displacement of the oscillator will be proportional to

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mωo2+ω2

1mωo2−ω2

1mωo2+ω2

mωo2−ω2

answer is B.

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Detailed Solution

For forced oscillations x=x0sin⁡(ωt+Φ) and F=Focos⁡(ωt) where x0=Fe/mω02−ω22+bωm2 here damping is zero ( b=0 )

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