Give one example each of natural vibration,forced vibration,and resonance.
(N/A) $(i)$ Natural vibration: The oscillations of a simple pendulum about its mean position in the absence of any external force.
$(ii)$ Forced vibration: $A$ sonometer wire,kept under tension,vibrating under the influence of an external vibrating tuning fork.
$(iii)$ Resonance: When the frequency of an external periodic force matches the natural frequency of a system,such as a sonometer wire vibrating with maximum amplitude when the tuning fork frequency matches its own natural frequency.
$(ii)$ Forced vibration: $A$ sonometer wire,kept under tension,vibrating under the influence of an external vibrating tuning fork.
$(iii)$ Resonance: When the frequency of an external periodic force matches the natural frequency of a system,such as a sonometer wire vibrating with maximum amplitude when the tuning fork frequency matches its own natural frequency.
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