25.1 Principle of Relativity
Michelson Interferometer


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The video simulates the Michelson Interferometer as discussed in Section 25.1. Referring to the diagram in Figure 25.2, the fixed mirror is on the left; the adjustable mirror is at the bottom next to the spinning wheel; the half-silvered mirror and the path-length compensator are in the middle; the light source is on the right; and the resulting interference pattern is shown at top right. The changes in pattern are due to the motion of the adjustable mirror. 
Samantha Shoemake and John T. Foley
The Optics Project (TOP)
Department of Physics and Astronomy
Mississippi State University, Mississippi State, Mississippi 39762.