Forced Oscillations

 The frequency of first overtone of a closed organ pipe of length $L$ is $f_1.$ A hole is made at a distance of $\frac{L}{6}$from the closed end. Now the frequency of first overtone of open pipe is$f_2$. 
 

If the natural frequency is equal to the driving frequency for the small damping of a simple pendulum, the amplitude of the forced oscillation will be:

For the forced oscillation of a damped spring mass system, the amplitude of the system at resonance is proportional to the 

For the forced oscillation of the simple pendulul, the amplitude of the pendulul at resonance depends on the:

The amplitude for the resonance of a spring mass system is $5\mathrm{cm}$, if the angular frequency of the driving force is $100 \raisebox{1ex}{$\mathrm{rad}$}\!\left/ \!\raisebox{-1ex}{$\sec $}\right.$ and the damping constant is $50 \raisebox{1ex}{$\mathrm{gm}$}\!\left/ \!\raisebox{-1ex}{$\sec $}\right.$; then find the amplitude of the driving force.

In case of forced oscillation; the resonance peak becomes very sharp when the

When an external force is applied on an oscillating particles and reduces the amplitude of the oscillation of the particle then this is called as-

A tuning fork starts vibrating as soon as certain tune is played on speaker, this is because of property known as-

What is the frequency with which forced periodic oscillations oscilate?

The graph of amplitude vs. driving frequency of a given oscillator is shown. Which one of the following sequence is correct based on their damping constant?

The frequency of free oscillation called _____ frequency.

In a free oscillation,what happens to the amplitude,frequency and energy of the oscillating body?

In the given arrangement which pair can represents the resonance.(All are simple pendulum).

The variation of amplitude of forced oscillation vs driving frequency. Which part represents least damping.

The variation of amplitude of forced oscillation vs driving frequency, which point represents the heavy damping.

What is the frequency with which forced periodic oscillations oscillate?
 

A vibrating system is analysed, and it is found that two successive oscillations have amplitudes of $3 \mathrm{mm}$ and $0.5 \mathrm{mm}$  respectively. The damping ratio of the system is:

A mechanical system is oscillating at resonance with a constant amplitude. Which one of the following statements is not correct?

In case of a forced oscillation, the resonance peak becomes very sharp when the

The vibrations that can continue even after the external force is removed are called free vibrations or natural vibrations.