Question

Define SHM and write it's two characteristics​

Answer 1

Answer

SHM (Simple Harmonic motion) is defined as the motion of a particle which moves two and fro along a straight line in which acceleration is directly proportional to displacement and is always directed opposite to displacement.

• A ∝ - y

Examples :

1. Oscillation of simple pendulum with small amplitude, vibration of strings in musical instrument.
2. Oscillation of a balance wheel in wrist watch.
3. Oscillation in torsional pendulam.

Characteristics of Simple Harmonic motion :

$\bigstar$ The motion of a body is periodic.

$\bigstar$ Acceleration is always directed towards equilibrium position.

$\bigstar$ The motion of the body is to and fro along a straight line about mean position.

$\bigstar$ Acceleration of a body is directly proportional to displacement of body.