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Oscillations are damped due to the presence of

Oscillations are damped due to the presence of Correct Answer frictional force

The correct answer is option 2) i.e. frictional force

CONCEPT:

  • Damped oscillation: When there is a gradual decrease in the amplitude of oscillatory motion, it is said to be damped.
    • The decrease in the amplitude is due to an external force that tends to slow down the oscillations.
    •  An example of a damped motion is that of a simple pendulum.
    • The energy of the oscillation is decreased gradually and continuously in this type of motion.
    • The forces which dissipate the energy are generally frictional forces.

EXPLANATION:

  • Friction acts as an external force that resists the motion.
  • This frictional force acting opposite to the motion does negative work on the system and leads to the dissipation of energy.
  • As a result, the amplitude of oscillations decreases and gets damped.​
  • So, the oscillations are damped due to the presence of frictional force.

​Additional Information

  • Reforming force is a force that acts to bring a body back to its equilibrium position.
  • Deforming force is a force that acts on a body and brings a change in size or shape or both.

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