The figure in 4.7 seems to give a misleading idea as to what the students should expect to see. The green and orange peaks are basically in sync, when in reality they should start the same and then happen at different times to the point where the peaks should be opposites (picture below of what it should look like).
The figure in 4.7 seems to give a misleading idea as to what the students should expect to see. The green and orange peaks are basically in sync, when in reality they should start the same and then happen at different times to the point where the peaks should be opposites (picture below of what it should look like).