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Forced oscillations occur when an external force is applied to a system, causing it to vibrate. Resonance occurs when the frequency of the external force matches the natural frequency of the system, resulting in a large amplitude oscillation.
When a system is subjected to an external force that varies with time, it is said to be undergoing forced oscillations. The amplitude of the oscillation depends on the frequency of the external force and the natural frequency of the system. If the frequency of the external force is close to the natural frequency of the system, the amplitude of the oscillation will be large.
Resonance occurs when the frequency of the external force matches the natural frequency of the system. At resonance, the amplitude of the oscillation can become very large, which can cause damage to the system. Resonance is used in many applications, such as in musical instruments, where the natural frequency of the instrument is used to produce a desired sound.
The principle of forced oscillations and resonance is important in many areas of physics, such as in the study of waves and vibrations. Understanding this principle is essential for designing structures that can withstand external forces and for creating devices that use resonance to produce a desired effect.
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