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    Find angular seperation of spectral lines with a grating spectrometer

    yay! i rock at PHYS
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    Find angular seperation of spectral lines with a grating spectrometer

    Homework Statement find the angular separation between the red hydrogen-alpha spectral line at 656nm and the yellow sodium line at 589nm if the two are observed in third order with a 3500-line/cm grating spectrometer. Homework Equations maximum equation for multi-slit interference d...