Graph (c) represents how pressure changes as a sound wave moves through the medium, with fluctuations occurring above and below the average pressure value.
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Graph (c) represents how pressure changes as a sound wave moves through the medium, with fluctuations occurring above and below the average pressure value.
Graph (c) illustrates how pressure changes as a sound wave moves through a medium. Fluctuations above and below the average pressure value depict compressions (high pressure) and rarefactions (low pressure) within the wave, aiding in understanding its propagation.