WBCHSE Class 11 Physics Nature Of Vibration Multiple Choice Questions

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Nature Of Vibration Multiple Choice Questions And Answers

Question 1. In the case of free vibration of a body, the quantity that remains constant is

  1. Velocity
  2. Acceleration
  3. Time period
  4. Phase

Answer: 3. Velocity

Question 2. During vibration, the restoring force is

  1. Directly proportional to the displacement
  2. Directly proportional to the velocity
  3. Directly proportional to the kinetic energy
  4. Directly proportional to the potential energy

Answer: 1. Directly proportional to the displacement

Question 3. During the damped oscillation of a body, the force that acts is

  1. Only the restoring force
  2. Only the resistive force
  3. The restoring force along with the resistive force
  4. The restoring force along with the resistive force and the external periodic force

Answer: 3. The restoring force along with the resistive force

Question 4. During damped vibration, the quantity which gradually decreases is

  1. Velocity
  2. Phase
  3. Frequency
  4. Amplitude

Answer: 4. Amplitude

Question 5. In case of resonance, the characteristic property which is the same for free vibration of the body and the external periodic force is

  1. Amplitude
  2. Phase
  3. Velocity
  4. Frequency

Answer: 4. Frequency

WBCHSE Class 11 Physics Nature Of Vibration Multiple Choice Questions

Question 6. During the forced vibration of a particle

  1. Only the restoring force acts on the particle
  2. Both the restoring force and a dissipative force act on the particle
  3. Both the restoring force and an external periodic force act on the particle
  4. The restoring force, a dissipative force, and an external periodic force act on the particle

Answer: 4. The restoring force, a dissipative force, and an external periodic force act on the particle

Question 7. During forced vibration, the frequency of the external periodic force is

  1. Equal to
  2. Less than
  3. Greater than
  4. Equal to, or greater than, or less than the frequency of free vibration of the body.

Answer: 4. Equal to, or greater than, or less than the frequency of free vibration of the body.

Question 8. During forced vibration, if the frequency of free vibration of a body is equal to the frequency of the external periodic force, then the phenomenon that occurs is called

  1. Beats
  2. Interference
  3. Resonance
  4. Reverberation

Answer: 3. Resonance

Question 9. If a vibrating tuning fork is held at the open end of a tube closed at one end, then for a particular length of the tube an intense sound is heard. This phenomenon is known as

  1. Beats
  2. Stationary wave
  3. Interference
  4. Resonance

Answer: 4. Resonance

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