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प्रश्न
State two ways in which resonance differs from forced vibrations.
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उत्तर
(i) In resonance it is necessary that the frequency of externally applied force should be equal to the natural frequency of the body whereas, it is not necessary for forced vibrations.
(ii) In forced oscillations, the amplitude of oscillations is small whereas, in resonance the amplitude of vibration is large.
संबंधित प्रश्न
How does the medium affect the amplitude of free/natural vibrations of a body?
Give one example to illustrate forced vibrations.
Differentiate between the forced and resonant vibrations.
In following figure shows A, B, C and D are four pendulums suspended from the same elastic string XY. Lengths of pendulum A and D are equal, while the length of pendulum B is smaller and the pendulum C is longer. The pendulum A is set into vibration.
(a) what is your observation? (b) Give reason for your observation.
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