Which of the following is true? I. For a wave propagating through water, the disturbance might be observed on the surface. II. For a sound wave, the disturbance might be observed by a change in air pressure. III. A wave of light may be described as a disturbance.
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Which of the following is true?
I. For a wave propagating through water, the disturbance might be observed on the surface.
II. For a sound wave, the disturbance might be observed by a change in air pressure.
III. A wave of light may be described as a disturbance.
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