Give one example each of natural vibration, forced vibration and resonance.
Q. Give one example each of natural vibration, forced vibration and resonance.
Ans. (i) Natural vibration : The vibrations of a simple pendulum about its mean position.
(ii) Forced vibration : A sonometer wire, under tension, vibrating under the influence of a vibrating tuning fork.
(iii) Resonance: A correctly adjusted length of a sonometer wire under proper tension, vibrating under the influence of a vibrating tuning fork.
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