Question

When an alarm clock rings, how will nearby air particles move in relation to the direction of the sound waves? A) Perpendicular to the direction of the waves B) Parallel to the direction of the waves C) In the opposite directions of the waves D) In the same direction as the waves

Answer 1

Parallel to the direction of the waves

Answer 2

B) Parallel to the direction of the waves

Step-by-step explanation:

Sound wave is a Longitudinal wave in which the medium particles will oscillates in the direction parallel to the propagation of wave always.

Which means if the wave is propagating in air in some direction then the direction of wave propagation will show the propagation of energy which is carried by the medium molecules.

These medium molecules will oscillates to and fro about their mean position and the disturbance is transferred from one molecule to other.

The to and fro motion of medium molecules are parallel to the propagation of energy in this case.

so here correct answer would be

B) Parallel to the direction of the waves