The Flat Glass Plates Flat Glass Plates for Interference Experiment are used for demonstrating Newton rings. These are patterns formed as light passes from a dense medium, through an extremely thin layer of air and back into a dense medium again. This Set of 6 plates allows for the observation of interference patterns caused by the passing or reflecting of light.

The flat glass plates are separated by a thin strip of paper at one end, creating a narrow space between them. By using a monochromatic light source, such as sodium, the interference patterns can be observed with clarity. 

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