Resolution of a Michelson interferometer

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SUMMARY

The resolution of a Michelson interferometer is determined by the minimum detectable fringe shift, which is influenced by the wavelength of light used and the arm length of the interferometer. To calculate the resolution, one must consider the speed of the ether flow relative to the interferometer and the effect of Earth's rotation on fringe shifts. By applying reasonable values for these parameters, one can derive an order of magnitude for the minimum speed detectable by the interferometer. This analysis is crucial for understanding the interferometer's sensitivity in measuring small changes in light paths.

PREREQUISITES
  • Understanding of fringe shifts in interferometry
  • Knowledge of light wavelength and its impact on resolution
  • Familiarity with the concept of ether flow in physics
  • Basic principles of the Michelson interferometer setup
NEXT STEPS
  • Research the mathematical derivation of fringe shift calculations in Michelson interferometers
  • Learn about the impact of different light wavelengths on interferometer resolution
  • Explore the historical context of ether theories and their relevance to modern physics
  • Investigate advanced techniques for improving the sensitivity of interferometric measurements
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Physicists, optical engineers, and students studying wave optics or interferometry who seek to deepen their understanding of measurement techniques and the historical significance of the Michelson interferometer.

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How to find the resolution of a Michelson interferometer ?
 
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What do you mean by "resolution"? The Michelson interferometer was an attempt to measure to speed of Earth through the aether by looking for fringe shifts as the Earth rotates and orbits the Sun. To get an order of magnitude for the minimum speed it could have detected, try first assuming that relative to the interferometer, ether flows parallel to one of the light paths at speed v. Then imagine Earth's rotation turning the device 90 degrees, so that ether now flows parallel to the other light path at v. Calculate the fringe shift that results, and plug in reasonable values for the minimum detectable fringe shift and arm length to get an idea for v.
 
can anyone help me in finding the resolution of Michelson Interferometer when wave lengh of light is given...
 

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