Question: A Michelson interferometer is setup with a light source as shown in the image below. When one of the mirrors is moved slowly through

A Michelson interferometer is setup with a light source as shown in

A Michelson interferometer is setup with a light source as shown in the image below. When one of the mirrors is moved slowly through a distance d = 0.237 mm, 815 bright fringes are observed and counted. What is the wavelength of the light in the interferometer? Give your answer in nm and don't use units. d

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