Question

Which of the following is/are properties of a sound wave?

• A. It does not requires a medium to propagate.
• B. It is a longitudinal wave.
• C. It is a mechanical wave.
• D. Travels faster than light.

Answer 1

Answer: (B), (C)

The correct options are
B It is a longitudinal wave.
C It is a mechanical wave.

Sound wave is an example of longitudinal wave. This is because the particles of the medium vibrate along the direction of motion of the sound wave.

Sound wave requires a medium for its propagation. Therefore, sound waves are mechanical waves.