Explain damped oscillation . Give an example.

Explanation

In a medium, due to the presence of friction and air drage, the amplituded of oscillation decreases as time progress. It is implied that the oscillatin is not sustained and the energy of the SHM decreases gradually indicating the loss of energy. The energy lot is absoerbed by the surrounding medium. This type of oscillatory medium. This type of oscillatory motion is know as damped oscillation. In other words, if an oscillator moves in a resistive medium its

Amplitude goes on decreasing. The energy of the oscillator is used to do work against the resistive medium. The motion of the oscillator is said to be damped. In this case, the resistive force (or damping force) is proportional to the velocity of the oscillator.
Eg :
(i) The oscillations of a pendulum (including air friction) or pendulum oscillating inside an oil filled container.
(ii) Electromagnetic oscillations in a tank tuned circuit.
(iii) Oscillations in a dead beat and ballistic galvanometers.