NEET Physics Damped & Forced Oscillations MCQ Question
Which of the following statements about damped and forced oscillations is correct?
In a damped oscillator, the mechanical energy continuously decreases due to external forces.
The displacement of a damped oscillator is always sinusoidal in nature.
For small damping, the angular frequency of the damped oscillator is significantly less than that of the undamped oscillator.
Damping forces always increase the amplitude of oscillation in a forced oscillator.
Correct Answer
Detailed Explanation
The first statement is correct as the mechanical energy in a real oscillating system decreases due to external forces like drag, which convert mechanical energy to thermal energy. The other statements contain inaccuracies regarding the nature of displacement, the relationship between angular frequencies, and the effect of damping forces on amplitude.
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