Question

When a sound wave travels in air:

• A. particles of medium travel from one place to another.
• B. particles of a medium do not vibrate.
• C. only wave moves from one place to another but particles do not move.
• D. both wave as well as particles move from one place to another.
  

Answer 1

The correct option is C only wave moves from one place to another but particles do not move.

Sound travels in air in the form of a wave. A wave is a vibratory disturbance in a medium which carries energy from one point to another. In a wave, particle movement does not happen, only wave moves.