Answer:
In physics, the amplitude is a measure of the maximum displacement or distance of a periodic wave from its equilibrium position. It is the height of the wave crest or depth of the wave trough, or the maximum distance the wave oscillates from its equilibrium position.
For example, in a sound wave, the amplitude represents the maximum pressure variation caused by the wave, and in an electromagnetic wave, the amplitude represents the maximum electric or magnetic field strength of the wave.
In mathematics, the term amplitude can also be used to refer to the magnitude or size of a quantity, such as the amplitude of a function or signal. The amplitude of a function or signal represents the maximum deviation of the function or signal from its average or zero value.
The term "amplitude" is used to describe the maximum deviation or range of a physical or mathematical phenomenon.