Sound waves cannot travel through:
Correct answer: D. Vacuum
- A. Air
- B. Water
- C. Steel
- D. Vacuum
Explanation
Sound requires a material medium for vibration transmission. In vacuum, there are no particles to carry sound energy.
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About Waves
Progressive waves transfer energy through oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.
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