Newton’s Rings

Newton’s Rings

Light is reflected from a thin film of air between a plane of glass and a spherical glass surface.

PIRA Code(s): 
6D30.10
Set up time: 
none
Physics and Science Concepts: 
Interference
Operation: 
Shine light through the rings so that they are reflected onto a wall. An overhead is good for this. Turn the screws on the frame to change the interference pattern.
Safety: 
Over head projector may be obtained from demo 9A36.10.