The given diagram shows an example of an oscillator that is displaced to produce vibrations. If a force is repeatedly applied on the oscillator, then it will produce
Correct answer: D. Forced oscillations.
- A. Beats.
- B. Resonance.
- C. Free oscillations.
- D. Forced oscillations.
Explanation
The correct answer is forced oscillations. When a force is repeatedly applied to an oscillator, it causes the system to oscillate at the frequency of the applied force, regardless of its natural frequency. This is distinct from free oscillations, which occur without continuous external force, and from resonance, which involves matching frequencies leading to large amplitude oscillations. Beats involve two different frequencies interfering and are unrelated to the continuous application of force to a single oscillator.
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About Simple Harmonic Motion
Simple harmonic motion is oscillation in which acceleration is directly proportional to displacement and directed toward the equilibrium position. Work includes displacement, velocity, acceleration, phase, period, frequency, amplitude and energy, with applications to springs and simple pendulums. The restoring force and the conditions for SHM distinguish it from general periodic motion.
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