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Question

Choose the correct statement(s) about sound in air from the options below.
  1. Longitudinal wave
  2. Mechanical wave
  3. Electromagnetic Wave
  4. Transverse wave


Solution

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.

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