Question

Sound travels in air :

पर्याय

• if particles of medium travel from one place to another

• if there is no moisture in the atmosphere

• If disturbance moves

• if both, particles as well s disturbance move from one place to another

Answer 1

Sound is a longitudinal wave in which the disturbance created by the vibrating body is carried out by the medium without the actual movement of the medium particles.
(c) If disturbance moves.