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प्रश्न
Differentiate between the forced and resonant vibrations.
State two differences between forced and resonant vibrations.
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उत्तर
| Forced Vibrations | Resonant vibrations |
| These are vibrations of a body under an external periodic force of frequency different than the body's natural frequency. | These are vibrations of a body under an external periodic force of frequency exactly equal to the natural frequency of the body. |
| The amplitude of the vibration is usually small. | The amplitude of vibration is very large. |
| The body's vibrations are not in phase with the external periodic force. | The vibrations of the body are in phase with the external periodic force. |
| These vibrations last very short after the periodic force has ceased to act. | These vibrations last long after the periodic force has ceased to act. |
Notes
Students should refer to the answer according to their questions.
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संबंधित प्रश्न
Name the phenomenon involved in tunning a radio set to a particular station
Define the Resonance phenomenon?
In the diagram below, A, B, C, D are four pendulums suspended from the same elastic string PQ. The length of A and C are equal to each other while the length of pendulum B is smaller than that of D. Pendulum A is set into a mode of vibrations
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2) What is the state of pendulum C?
3) State the reason for the type of vibrations in pendulum B and C.
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Explain why stringed musical instruments, like the guitar, are provided with a hollow box.
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