What is peak pressure or height of a wave known as?

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Multiple Choice

What is peak pressure or height of a wave known as?

Explanation:
Amplitude is the maximum deviation of a wave from its rest state. For a pressure wave in tissue, that means the largest positive or negative pressure relative to ambient. The peak pressure or height of the wave is its amplitude. This differs from wavelength (the spatial distance between peaks), phase (where you are in the cycle), and frequency (how many cycles occur per second). In ultrasound, bigger amplitude corresponds to a stronger wave, since intensity relates to the square of the amplitude.

Amplitude is the maximum deviation of a wave from its rest state. For a pressure wave in tissue, that means the largest positive or negative pressure relative to ambient. The peak pressure or height of the wave is its amplitude. This differs from wavelength (the spatial distance between peaks), phase (where you are in the cycle), and frequency (how many cycles occur per second). In ultrasound, bigger amplitude corresponds to a stronger wave, since intensity relates to the square of the amplitude.

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