Which of the following statements is true for sound waves?
The true statement for sound waves is at 0 °C their speed is 332 meters per second. Sound waves cannot be polarized because they are longitudinal waves, and they cannot travel in a vacuum as they require a medium to propagate.
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The correct statement regarding sound waves is ; option [C] At 0 °C their speed is 332 meters per second. Sound waves are longitudinal waves, characterized by compressions and rarefactions in the medium through which they travel. Due to their nature, they cannot be polarized; polarization is a property of transverse waves, where the oscillations occur perpendicular to the direction of wave propagation. Additionally, sound waves require a medium (such as air, water, or solids) to travel and cannot propagate in a vacuum because there are no particles to transmit the wave energy. Therefore, the statement about their speed at 0 °C being 332 meters per second is accurate, reflecting the physical properties of sound wave propagation in air at that specific temperature. This speed can vary with changes in temperature, pressure, and medium properties. Hence, the correct answer is [C].