Having trouble drawing the wave representations for this diagram. [PLAIN]http://img156.imageshack.us/img156/94/diag.png [Broken] I'm not sure what the incident and reflected waves should look like. The question is asking to draw the waves in each region. I understand how to calculate the waves just not how to represent them. Any help appreciated thanks. EDIT: I also understand that the wavelength must be smaller in the middle. What I'm unsure of is where exactly to draw the reflected waves.