Mickelson-Morely Experiment

A Michelson interferometer and a laser source are mounted on a rotating platform. The fringes are projected onto a screen and a fringe shift is demonstrated by changing the path length of one arm. The platform is then rotated through 90 degrees and the fringe pattern is followed as it moves through different screens. The lack of shift in fringes for this demonstration and for the original Michelson-Morley experiment is discussed.

Equipment:
Michelson interferometer
Laser
Rotating platform
Screens

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This video is part of the project "Videos of Physics Demonstrations", which is created by Dr. Galli and Dr. Amiri of Physics Department, Weber State University. To access the full library of the videos, please visit this link: https://www.weber.edu/physics/amiri_g...

Links to University and Department:
Weber State University Homepage: https://www.weber.edu/
WSU Physics Department: https://www.weber.edu/physics