The infinite square well solutions to the Schrödinger equation are standing waves. Recall that a standing wave can be constructed by a superposition of two traveling waves, with equal amplitudes, wavelengths, and wave speeds, but moving in opposite directions (counterpropagating). Sketch three graphs that show the amplitude as a function of wavenumber for an electron in a well of length L 10 nm, for the n-1,2, and 3 states. respectively. Include a numerically scale for both axes (amplitude and wavenumber) on your graphs.