In damped oscillation,the graph between velocity $(V)$ and position $(x)$ will be:

The displacement of a damped harmonic oscillator is given by $x(t) = e^{-0.1t} \cos(10\pi t + \varphi)$. The time taken for its amplitude of vibration to drop to half of its initial value is close to .... $s$

To understand resonance,describe the experiment of oscillations of five pendulums.

When an external force with angular frequency $\omega_d$ acts on a system of natural angular frequency $\omega$,the system oscillates with angular frequency $\omega_d$. The condition for the amplitude of oscillations to be maximum is

In forced oscillations,a particle oscillates simple harmonically with a frequency equal to

The amplitude of a wave is represented by $A = \frac{c}{a + b - c}$. Resonance will occur when: