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Damped and Forced oscillations
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Q1. Which one of the following is incorrect statement about damped oscillation.
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(a) The oscillation of a body whose amplitude goes on decreasing with time is defined as damped oscillation.
(b) In these oscillations the amplitude of oscillation decreases exponentially due to damping forces like frictional force, viscous force
(c) With decrease in amplitude the frequency of the oscillator goes on increasing.
(d) The force producing a resistance to the oscillation is called damping force.
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1 point
(a)
(b)
(c)
(d)
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1 point
(a)
(b)
(c)
(d)
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Q4.
In case of a forced vibration, the resonance wave becomes very sharp when the
1 point
(a) Restoring force is small
(b) Applied periodic force is small
(c) Quality factor is small
(d) Damping force is small
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Q5. Which one of the following is incorrect statement about forced oscillation.
1 point
(a)
(b)
(c)
(d)
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Q6. Which one of the following expression is incorrect about forced oscillation.
1 point
(a)
(b)
(c)
(d)
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