A Michelson interferometer is adjusted so that a bright fringe appears on the screen. As one of the mirrors is moved 11.5 um, 92bright fringes are counted on the screen. What is the wavelength of the light used in the interferometer?nm

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A Michelson interferometer is adjusted so that a bright fringe appears on the screen. As one of the mirrors is moved 11.5 µm, 92 bright fringes are counted on the screen. What is the wavelength of the light used in the interferometer? nm

A Michelson interferometer is adjusted so that a bright fringe appears on the screen. As one of the mirrors is moved 11.5 µm, 92 bright fringes are counted on the screen. What is the wavelength of the light used in the interferometer? nm

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter37: Wave Optics

Section: Chapter Questions

Problem 37.44P: One leg of a Michelson interferometer contains an evacuated cylinder of length L, having glass...

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Concept explainers

Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.

Question

A Michelson interferometer is adjusted so that a bright fringe appears on the screen. As one of the mirrors is moved 11.5 um, 92
bright fringes are counted on the screen. What is the wavelength of the light used in the interferometer?
nm

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