Determine the wavelength of sodium sorcre using mechelsons interferometer

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Vikas TU · Answer

Dear student Michelson interferometer has been used to determine the wavelength of the green emission line from a mercury lamp. The measured wavelength was 549.0(9)nm. Using the known wavelength of the same line, 546.074nm, the reduction lever of the interferometer was found to reduce the micrometer travel by a ratio of 5.026(8):1, rather than the quoted 5:1. Using this calibrated reduction ratio, the average wavelength of the yellow sodium doublet was determined to be 589.3(10)nm and the splitting between the lines forming the doublet was 0.5971(5)nm. These are in excellent agreement with the literature values of 589.294nm and 0.5974nm, respectively.

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Determine the wavelength of sodium sorcre using mechelsons interferometer

Determine the wavelength of sodium sorcre using mechelsons interferometer

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