cse • paper_1 • waves_oscillations
[UPSC CSE 2012] Diffraction (Q259, 20M)
A diffraction grating of width 5 cm with slits of width 10^{-4} cm separated by a distance of 2\times10^{-4} cm is illuminated by light of wavelength 550 nm. What will be the width of the principal maximum in the diffraction pattern? Would there be any missing orders?
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