Concept:Polarization is a geometric filtering process that is strictly impossible for certain types of waves.
Solution:- Polarization involves restricting a wave's perpendicular vibrations to a single plane (like sliding a vibrating rope through a narrow vertical fence slit).
- Sound waves in air are longitudinal waves. This means their particles vibrate purely back-and-forth along the exact same straight line as the wave's forward motion.
- Because all the motion is already locked onto a single 1-dimensional axis, there are no perpendicular "planes" left to filter out. Thus, longitudinal waves can never be polarized.
Why other options are incorrect:Transverse waves (Option B) are the only waves that
can be polarized. The need for a medium (Option C) or wavelength size (Option D) has no bearing on geometric polarization.
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