Where can a body execute free vibrations?
1. For executing the free vibration, the body needs to be free from gravitational forces and air resistance or any external forces.
2. Hence free vibration occurs only in a vacuum.
(a) Draw a graph between displacement and time for a body executing the natural vibrations.
(b) Where can a body execute the natural vibrations ?
State one condition for a body to execute the natural vibrations.
When a body vibrates under a periodic force, the vibrations of the body are :
(a) natural vibrations (b) damped vibrations
(c) forced vibrations (d) resonant vibrations.
A wire stretched between the two fixed supports, is plucked exacly in the middle and then released. It executes (neglect the resistance of the medium) :
(a) resonant vibrations (b) natural vibrations
(c) damped vibrations (d) forced vibrations.