Question

The maximum displacement of a wave on either side of the mean position is defined as the _________ of the wave.

Answer 1

1. The to and fro or up and down motion of a body about a fixed point is called vibration.
2. The fixed point about which the body vibrates is called the mean position.
3. The maximum displacement of the body on either side of the mean position is known as the amplitude of the wave.
4. The amplitude of a wave has the same units as that of the length that is metre (m).

Thus, the maximum displacement of a wave on either side of the mean position is defined as the amplitude of the wave.