Another wave behavior is interference. If one wave travels an extra distance which is an integral number of wavelengths, the two waves add together (constructive). If the difference involves an extra half-wavelength, then crest will meet trough, and the waves will cancel (destructive). (2.) Two sound wave sources are placed along the y-axis at y= +/-0.5 meters respectively. Suppose that they are initially in phase and have a wavelength of 0.25 meters. If the speed of sound is 343 m/s, where do you place the first 3 microphones above the x-axis along the line x = 10 meters so that you get constructive interference?

Another wave behavior is interference. If one wave travels an extra distance which is an integral number of wavelengths, the two waves add together (constructive). If the difference involves an extra half-wavelength, then crest will meet trough, and the waves will cancel (destructive). (2.) Two sound wave sources are placed along the y-axis at y= +/-0.5 meters respectively. Suppose that they are initially in phase and have a wavelength of 0.25 meters. If the speed of sound is 343 m/s, where do you place the first 3 microphones above the x-axis along the line x = 10 meters so that you get constructive interference?