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Calculate the least width that a grating must have to resolve the components of Na lines 5890 & 5896 $\mathring{A}$ in the $2^{nd}$ order if it has 1000 lines/cm.
written 6.3 years ago by
neeta.vanage
• 850
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modified 2.0 years ago
by
sagarkolekar
★ 11k
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