One of the beams of a Michelson interferometer passes through a
small, evacuated glass container 1.155 cm deep. When a gas is
allowed to slowly fill the container, a total of 176 dark fringes
are counted to move past a reference line. The light used has
a wavelength of 632.8 nm. Calculate the index of refraction
of the gas at its final density, assuming that the interferometer
is in vacuum.
One of the beams of a Michelson interferometer passes through a small, evacuated glass container 1.155 cm deep. When a
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