Question

Choose the correct statement(s) about sound in air from the options below.

• A. Longitudinal wave
• B. Mechanical wave
• C. Electromagnetic Wave
• D. Transverse wave

Answer 1

Answer: (A), (B)

The correct options are
A Longitudinal wave
B Mechanical wave

A mechanical wave is a wave that requires a material medium to travel. A sound wave is an example of a mechanical wave. It cannot travel through vacuum.
A longitudinal wave is a wave in which particles of the medium move in a direction parallel to the direction of motion of wave. When sound travels through a gaseous medium, it is a longitudinal wave.