Question

in a transverse wave, the motion of the disturbance is in what direction relative to the wave motion?

• opposite
• parallel
• perpendicular
• in the same direction

Explanation:

In a transverse wave, the key characteristic is that the motion of the medium (disturbance) is perpendicular to the direction of the wave's propagation. For example, in a water wave (transverse), the water particles move up and down (perpendicular) while the wave travels horizontally. Parallel or same - direction motion is characteristic of longitudinal waves (like sound waves in air), and "opposite" is not the correct description for transverse wave disturbance - wave motion direction relationship. So the correct option is the one with "perpendicular".

Answer:

C. perpendicular