Longitudinal waves are also known as:
Correct answer: B. Pressure waves
- A. Transverse waves
- B. Pressure waves
- C. Particle waves
- D. Electromagnetic waves
Explanation
Longitudinal waves consist of compressions and rarefactions (pressure variations) along propagation, so calling them pressure waves is appropriate, especially for sound.
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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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