cse • paper_1 • waves_oscillationscse-2018-subject-02-003
Plane transmission grating — UPSC CSE 2018 Physics PYQ
Buy PYQ Solution Manual →A plane transmission grating has 3000 lines in all, having width of 3\ \mathrm{mm}. What would be the angular separation in the first order spectrum of the two sodium lines of wavelengths 5890\mathring{\mathrm{A}} and 5896\mathring{\mathrm{A}}? Can they be seen distinctly?
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