Class 11PhysicsOscillationsDifferent types of oscillations (Free, Damped, Forced Oscillation and Resonance)
EasyWhich of the following statements regarding the damping force of a damped oscillator is $NOT$ correct?
- ADamping force depends on the nature of the surrounding medium.
- BDamping force is generally proportional to the velocity of the body making oscillations.
- CDamping force acts in the direction of the velocity of the body.
- DThe ratio of the damping force to the velocity of the body depends on the size and shape of the body.
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In forced oscillations,a particle oscillates simple harmonically with a frequency equal to
Easy
View SolutionIn the case of a forced vibration,the resonance curve becomes very sharp when the
$A$ particle with a restoring force proportional to displacement and a resisting force proportional to velocity is subjected to a driving force $F \sin \omega t$. If the amplitude of the particle is maximum for $\omega = \omega_1$ and the energy of the particle is maximum for $\omega = \omega_2$,then (where $\omega_0$ is the natural frequency of oscillation of the particle):
MediumAIPMT 1998
View SolutionIf the amplitude of a lightly damped oscillator decreases by $1.5 \%$,then the mechanical energy of the oscillator lost in each cycle is: (in $\%$)
The amplitude of a simple pendulum,oscillating in air with a small spherical bob,decreases from $10 \ cm$ to $8 \ cm$ in $40 \ s$. Assuming that Stokes' law is valid,and the ratio of the coefficient of viscosity of air to that of carbon dioxide is $1.3$. The time in which the amplitude of this pendulum will reduce from $10 \ cm$ to $5 \ cm$ in carbon dioxide will be close to ..... $s$ $(\ln 5 = 1.601, \ln 2 = 0.693)$
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