cse • paper_1 • waves_oscillations
[UPSC CSE 1995] Diffraction (Q290, 20M)
Obtain the intensity pattern due to Fraunhofer diffraction at two parallel slits. Each slit has a width ‘a’ and the separation between the slits is d. How many interference fringes will appear in the central diffraction maximum, it d = 4a?
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