Задача 40209.

What period should a diffraction grating have a width of L = 2.5 cm for resolving a doublet of sodium with wavelengths in the first-order spectrum? Lamda1 = 5890 Å, lamda2 = 5896 Å, K = 1.

A detailed solution with a brief record of the conditions, formulas and laws used in the solution, the derivation of the calculation formula and the answer.
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