6D30.15 - Parallel Plate Interference
To demonstrate interference of a thin film of air between optically flat plates.
Place the two flat plates on the included black rubber sheet. Position a camera on a slight angle above the plates to observe the interference pattern.
With the camera ported up for the students to see, using your pinky finger, apply pressure to the top plate and observe the interference pattern change as the thin film of air between the plates is changed.