Physics
Answer
The periodic vibrations of a body in the absence of any external force on it, are called the natural (or free) vibrations.
For example —
A body clamped at one point when disturbed slightly from its rest position, starts vibrating. The vibrations so produced are called the natural or free vibrations of the body.
Related Questions
What is meant by the natural frequency of vibrations of a body? Name one factor on which it depends?
What adjustments would you make for tuning a stringed instrument for it to emit a note of a desired frequency?
State two ways of increasing the frequency of vibrations of a stretched string.
State one condition for a body to execute the natural vibrations.