Biology, asked by Anonymous, 1 year ago

what are forced oscillations?
plz it's mah homwrrwork

Answers

Answered by DavidOtunga
3
This is biology, not relatable to the subject but is under the physics section. I will answer it.

Forced Oscillations: It is happening when the system oscillates under the influence of some external periodic force, then it's oscillations are said to be called "forced".
For example, sound boxes of the musical instruments execute forced vibrations, due to the periodic force of the vibrating strings.
When a periodic force acts on an oscillator, then to start with it tends to oscillate with its own natural frequency. But, ultimately the external periodic force may dominate. In such a case the oscillator executed vibrations with the frequency of external periodic force.
Forced oscillations are of two basic types : non-resonant and resonant oscillations.

1) Non-resonant oscillations. When the natural frequency of the oscillator is different than that of the external periodic force acting on it, the forced oscillations are called as non-resonant.
The amplitude of non resonant oscillations is not very large. The transfer of energy to the oscillator is small.

2) Resonant oscillations. When the natural frequency of the oscillator is equal to the frequency of the external periodic force acting on it, the oscillations are then called as Resonant oscillations.
In such a case the oscillator is said to be in resonance (with external periodic force applied to it). Amplitude of oscillations tends to be large. The oscillator vibrates in phase with a external periodic force. The transfer of energy to the oscillator is is also large.
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