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Question
The yellow light from a sodium vapor lamp seems to be of pure wavelength, but it produces two first-order maxima at $36.093^\circ$ and $36.129^\circ$ when projected on a 10,000 line per centimeter diffraction grating. What are the two wavelengths to an accuracy of 0.1 nm?
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Final Answer
$589.1 \textrm{ nm}$
$589.6 \textrm{ nm}$
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OpenStax College Physics Solution, Chapter 27, Problem 29 (Problems & Exercises) (2:00)

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