One of the beams of an interferometer (Fig. 24-59) passes through a small glass container containing a

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One of the beams of an interferometer (Fig. 24-59) passes through a small glass container containing a cavity 1.30cm deep. When a gas is allowed to slowly fill the container, a total of 236 dark fringes are counted to move past a reference line. The light used has a wavelength of 610nm. Calculate the index of refraction of the gas, assuming that the interferometer is in vacuum.


to mirror M Glass container Source- M2 Ms 1.30 cm
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Chemical Principles

ISBN: 978-1111580650

7th edition

Authors: Steven S. Zumdahl, Donald J. DeCoste

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