Which of the following properties is not exhibited by sound waves?

Step 1: Analyze the question We need to find the property that sound waves do NOT show.

Step 2: Explain the concept Sound waves are longitudinal waves. The particles of the medium vibrate parallel to the direction in which the wave travels. Polarization restricts vibrations to a single plane, so it only makes sense for transverse waves (like light), where vibrations are perpendicular to the direction of travel.

Step 3: Check each option

• A. Diffraction: Sound bends around obstacles and through gaps. This is why you can hear someone talking from around a corner. Sound shows diffraction.
• B. Polarization: Sound vibrates along its direction of travel, so there is no perpendicular plane to restrict. Sound cannot be polarized.
• C. Interference: Two sound waves can combine to give louder or quieter regions, as in beats and standing waves. Sound shows interference.
• D. Reflection: Echoes are reflected sound. Sound shows reflection.

Step 4: Answer Polarization is not exhibited by sound waves.

Tip: Polarization means "transverse only." If a wave can be polarized, it is transverse. Light can be polarized, but sound cannot. Reflection, refraction, diffraction, and interference are shown by all waves.