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Monochromatic light is beamed into a Michelson interferometer. The movable mirror is displaced 0.382 mm, causing...

Monochromatic light is beamed into a Michelson interferometer. The movable mirror is displaced 0.382 mm, causing the central spot in the interferometer pattern to change from bright to dark and back to bright N = 1,700 times.

(a) Determine the wavelength of the light in nm

What color is it?

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