Which dashed line in this figure would be the wave base?

Question

Quizplus · Accepted Answer

The wave base is defined as the depth at which wave energy dissipates, and below which the water column is essentially unaffected by wave action. In this figure, we can see that the waves are gradually becoming smaller in size as we move downwards in depth. The dashed line 3 represents the depth below which there is no significant wave motion. Therefore, choice C) is the correct answer.

Which Dashed Line in This Figure Would Be the Wave