Question

what is amplitude oscillation?

Answer 1

The amount by which a measure diverges from the mean value as it moves through the time is called Amplitude Oscillation.

$for \: example$
SOUND WAVES, CHANGE IN PRESSURE ETC.

Answer 2

The amplitude of a periodic variable is a measure of its change in a single period. There are various definitions of amplitude, which are all functions of the magnitude of the differences between the variable's extreme values. In older texts, the phase of a period function is sometimes called the amplitude.

The SI unit of amplitude is the meter [m], but other length units may be used.

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