1. The problem statement, all variables and given/known data Describe how the concept of wave superimposition is used to create AM radio waves. 2. Relevant equations 3. The attempt at a solution O.K, I am not sure that I understand how this works. In the picture attached it shows the carrier frequency inside of the audio signal. The amplitude changes over time, so is the amplitude not proportional to the wavelength or frequency? If that is the case then would I be correct in saying that constructive/destructive wave interference is used to superimpose the amplitude of the carrier frequency to be similar with the audio signal's wavelength. Wave demodulation for AM signals measures the amplitude over time so that the wavelength can be known. With the wavelength and speed of light one can calculate the frequency of the audio signal, which is then amplified and converted into sound through the speakers. Is this more or less correct?