Which one of the following properties is not exhibited by the longitudinal waves?
Correct answer: D. Polarization
- A. Interference
- B. Reflection
- C. Diffraction
- D. Polarization
Explanation
In a transverse wave, the oscillations of the particles occur perpendicular to the direction of wave propagation. This allows for the possibility of aligning the vibrations in a specific direction, a property known as polarization.In contrast, longitudinal waves involve oscillations of particles parallel to the direction of wave propagation. Because of this parallel oscillation, longitudinal waves do not exhibit polarization. Sound waves, which are longitudinal waves, do not have a preferred direction for particle oscillations.
This question appeared on the PMC National MDCAT 2020 paper, which you can sit online with every answer explained.
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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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