Question

As a longitudinal wave moves through a medium,
the particles of the medium
(1) vibrate parallel to the direction of the wave’s
propagation
(2) vibrate perpendicular to the direction of the
wave’s propagation
(3) are transferred in the direction of the wave’s
motion, only
(4) are stationary

Answer 1

1) Vibrate Parallel to the direction of the wave's propagation

Answer 2

Answer:

D. The medium vibrates parallel to the direction of the wave.

Explanation:

e2021