Which is an example of a transverse wave? a) an ultrasound that transmits soundwaves b) a crowd doing the wave at a sporting event c) the waves formed by an earthquake d) the movement of a spring in a pogo stick

The correct answer is: Option (B) A crowd doing the wave at a sporting event.

Explanation:

In simple words (not a textbook definition), transverse wave is a wave in which the points on it move perpendicular to the direction of its propagation. What I really mean is that if the wave is moving towards left or right, the points on the wave will be moving up and down; likewise, if the wave's motion is towards up or down, the points on the wave will be moving left and right.

In the case of crowd doing the wave at a sporting event, the crowd moves up and down, and the wave will travel from either left or right. Think of individuals of the crowd as the points of the wave. Hence, points on a wave (meaning individuals of a crowd) move perpendicular to the direction of wave's propagation. The correct option is (B).

B). longitudinal waves