Ripple Tank

1. Place ripple tank on overhead projector
2. Fill tank with water (~1/4" high) using a water jug
3. Level projector (check water level) and focus projector.

Both hand-held and motorized sources are available.  To set up the motorized oscillator:

1. Mount the oscillator with a retort stand
2. Attach desired wave sources to oscillator.  (Both line sources and point sources are available, though the current tank for demos is too small for the line source.  Larger tanks are in the laboratories)
3. Connect the oscillator to a 12VDC variable power supply using banana cords
4. Set up the motor/oscillator so that wave sources just touch the surface of the water.
5. Turn on power supply
6. Adjust speed with supply voltage and phase with the phase control on the oscillator
7. Observe interference patterns generated