In transverse waves, the medium : group of answer choices
vibrates in a direction perpendicular to the direction of motion of the wave.
doesn't vibrate; the disturbance just moves through the medium.
vibrates in the same direction the wave is moving.
moves in sort of a circular motion.

Correct option : (a) "vibrates in a direction perpendicular to the direction of motion of the wave".

Explanation:

The waves can be of two types i.e. transverse wave and longitudinal waves. In transverse waves, the medium vibrates in a direction perpendicular to the direction of motion of the wave while in the longitudinal waves, the medium vibrates in a direction parallel to the direction of motion of the wave.

The crest and trough are the parts of the transverse waves. The maximum displacement is crest while the minimum displacement is trough.

Hence, the correct option is (a).                  

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