The diagram in Fig. shows the displacement time graph of a vibrating body. What happens to the vibrations of the body after some time?
What do you understand by free vibrations of a body?
Give one example of forced vibration.
When a body is under certain stress, is it equilibrium ?
How does the loudness of sound produced depend on the vibrating area of the body ?
Where can a body execute free vibrations?
Resonance produces louder sound than that produced by the forced vibrations of a body . Why then is resonance purposely avoided in many instruments ?
Define forced and resonant vibrations
Assertion : Resonance is special case of force vibration in which the nature frequency of vebration of the body is the same as the impressed frequency of external periodic force and the amplitude of force vibration is maximum Reason: The amplitude of forced vibrations of a bodyincrease with an increase in the frequency of the externally impressed perioic force
