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Statement of a problem № 4021

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(a) Explain with necessary theory how a Michelson interferometer may be employed to find the difference in wavelength of D1 and D2 lines in the sodium spectrum. (b) The distance through which the mirror of the Michelson interferometer has to be displaced between two consecutive positions of maximum distinctness of D1 and D2 lines of sodium is 2.89x10^(-5) cm. Calculate dL assuming that L1=L2 = 5.89x10^(-5) cm.

Solution:
(a)  Explain with necessary theory how a Michelson interferometer may be employe

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