Question

The sound waves in a medium are characterised by the

• A. linear motion of particle in the medium
• B. rotatory motion of particles in the medium
• C. oscillatory motion of particles in the medium
• D. none of the above

Answer 1

The correct option is C oscillatory motion of particles in the medium

Sound is a mechanical wave that results from the back and forth vibration of the particles of the medium through which the sound wave is moving. If a sound wave is moving from left to right through air, that is in an oscillatory motion, then particles of air will be displaced both rightward and leftward as the energy of the sound wave passes through it.