In the diagram, the amplitude of the wave is shown by A.
What is Amplitude?
- The amplitude of a periodic variable is a measure of its change in a single period.
- The amplitude of a non-periodic signal is its magnitude compared with a reference value.
There are various definitions of amplitude, which are all functions of the magnitude of the differences between the variable's extreme values.
The amplitude of a variable is simply a measure of change relative to its central position. In contrast, magnitude is a measure of the distance or quantity of a variable irrespective of its direction.
Amplitude is a property that is unique to waves and oscillations.
Therefore, in the diagram, the amplitude of a wave is shown by A.
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