Question

One complete to and fro motion which constitutes a wave is called an __________.

Answer 1

1. Sound is the form of energy that provides the sensation of hearing in our ears.
2. Sound is produced by the vibration of a body or its particles.
3. One complete to and fro motion of a particle or a body about a point is called an oscillation.
4. The fast oscillation is termed as vibration.

Thus, one complete to and fro motion which constitutes a wave is called an oscillation.