Chap 07 - Oscillations

If a pendulum has a frequency of 0.54 c/s then its time period will be

• 1/2 second.

• 1 second.

• 1.85 second.

• 2 seconds

It is said that one day while Ustad Amanat Ali Khan, one of our famous vocalists, was singing, a glass of water cracked. This happened because of

• amplitude.

• force.

• resonance.

• vibration.

In a simple harmonic motion, the acceleration of the body at any instant is directly proportional to

• amplitude.

• displacement.

• applied force.

• mean position.

The time period of a simple pendulum is independent of

• acceleration due to gravity.

• length of pendulum.

• mass suspended

• the angle

The process in which energy is dissipated from an oscillating system is known as

• phase.

• damping.

• resonance.

• simple harmonic motion.

The potential energy of a simple pendulum at its mean position

• is zero.

• is maximum.

• is equal to one.

• remains constant.

If the time period of a simple pendulum is

$\pi$ seconds, then its angular velocity in radian/second is

•  $\frac{1}{2}$  
  

•  $\frac{\pi}{2}$  

•  $2$  

•  $2\pi$  

A performing SHM has maximum acceleration when it is at

• mean position.

• extreme position.

• half of extreme position.

• one third of extreme position.

A body executes simple harmonic motion with an amplitude 'a'. Which of the following graphs represents the variation of velocity 'v' with displacement?

• 
• 
• 
• 

A horizontal mass spring system performs SHM with amplitude of 0.06 m and angular frequency of 14 rad/s. Its instantaneous velocity at a point 0.02 m from its mean position will be

• 0.79 m/s.

• 0.89 m/s.

• 2.79 m/s.

• 3.79 m/s.