Question

In a sound wave, the direction of propagation is:
(A) in the direction of the vibrations of the vibrating body
(B) opposite to the direction of vibrations of vibrating body
(C) perpendicular to the direction of vibrations of the vibrating body
(D) at an angle of 60° to the direction of vibrations of the vibrating body​

Answer 1

Answer is A

The propogation of sound wave is in the direction of the vibration of vibrating body.

(to and fro). They travel as compression and rarefaction in that medium.

Answer 2

Hi dear

For a longitudinal wave the direction of the wave propagation is parallel ( same direction ) as the motion of the medium particles . Sounds wave in error are unique in that they propagate as longitudinal waves . The sound particles vibrations travel outward from the source with the same phase .

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