One leg of a Michelson interferometer contains an evacuated cylinder of length L, =0.45m having glass plates on each end. A gas is slowly leaked into the cylinder until a pressure of 1 atm is reached. If 158 bright fringes pass on the screen when light of wavelength A=450nm is used, what is n, the index of refraction of the gas? State your answer to the nearest 0.000001 ( one part per million).
One leg of a Michelson interferometer contains an evacuated cylinder of length L, =0.45m having glass plates on each end. A gas is slowly leaked into the cylinder until a pressure of 1 atm is reached. If 158 bright fringes pass on the screen when light of wavelength A=450nm is used, what is n, the index of refraction of the gas? State your answer to the nearest 0.000001 ( one part per million).
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Transcribed Image Text:One leg of a Michelson interferometer contains an evacuated cylinder of length L,
=0.45m having glass plates on each end. A gas is slowly leaked into the cylinder until
a pressure of 1 atm is reached. If 158 bright fringes pass on the screen when light of
wavelength A=450nm is used, what is n, the index of refraction of the gas? State
your answer to the nearest 0.000001 ( one part per million).
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