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CSE · Paper I · Waves & Opticscse-1995-subject-02-005

Fraunhofer diffraction — UPSC Physics Optional CSE 1995 Paper I

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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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