Question

Based on the diagram, which of these conclusions is correct about the two waves?

Answer 1

The amplitude of wave 2 is double the amplitude of wave 1

Answer 2

At first glance, the amplitudes are the same (height of the waves).
It can be seen that Wave 2 goes up and down twice as much in one second as Wave 1. then, wave 2 has half the period and "twice as much as wave 1".