A particle of mass m is attached to a spring (of spring constant k) and has a natural angular frequency ω0. An extemal force F(t) proportional to cos ω t(ω ≠ w0) is applied to the oscillator. The time displacement of the oscillator will be proportional to
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a
mω02-ω2
b
1m(ω02-ω2)
c
1m(ω12+ω2)
d
mω12+ω2
answer is B.
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Detailed Solution
For forced oscillation,x = x0sin(ωt+φ) and F = F0cos ωtwhere, x0 = F0m(ω02-ω2) α 1m(ω02-ω2)
A particle of mass m is attached to a spring (of spring constant k) and has a natural angular frequency ω0. An extemal force F(t) proportional to cos ω t(ω ≠ w0) is applied to the oscillator. The time displacement of the oscillator will be proportional to