Questions  

A particle of mass m is attached to a spring (of spring constant k) and has a natural angular frequency ω0 -An external force F (t) proportional to cosωt((ωω0) is applied to the oscillator. The time displacement of the oscillator will be proportional to

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By Expert Faculty of Sri Chaitanya
ctaimg
a
mω02−ω2
b
1m(ω02−ω2)
c
1m(ω12+ω2)
d
mω12+ω2
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detailed solution

Correct option is B

For forced oscillation,x=x0sin(ωt+φ)  and  F=F0cosω twhere,   x0=Fom (ωo2−ω2)∝1m(ωo2−ω2).


ctaimg

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