The D line in the spectrum of sodium is a doublet with wavelengths 589.0 and 589.6 nm.

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The D line in the spectrum of sodium is a doublet with wavelengths 589.0 and 589.6 nm. Calculate the minimum number of lines needed in a grating that will resolve this doublet in the second-order spectrum.

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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Question Posted: Jan 26, 2011 05:53 AM

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The D line in the spectrum of sodium is a doublet with wavelengths 589.0 and 589.6 nm.

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Fundamentals of Physics

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