Ripple Tank site version
Ripple Tank simulates the interference between two circular waves, for instance waves on water. You can make images and animations of the interference pattern. Change the separation or phases of the sources. This program is ideal for explaining what happens in a ripple tank. Suitable for high school and college students and teachers.
Ripple Tank comes with 5 premade simulations which you may modify as you like. Each simulation includes one or more suggested activities of varying difficulty. You may also construct and save your own simulation.