Sound wave in air is
- Atransverse
- Blongitudinal
- Celectromagnetic
- Dpolarized
- ENone of the above / More than one of the above
Show answer and explanation
Correct answer: (b) longitudinal
Explanation
Sound in air is a longitudinal wave: medium particles vibrate parallel to the direction of propagation.
It is a mechanical wave needing a medium, so it cannot be electromagnetic or polarized (polarization needs transverse waves).
It travels as alternate compressions and rarefactions.