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You shine a 400nm laser on a pair of narrow slits separated by 0.02 mm and observe an interference pattern on a screen placed

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Giren a = 4x107m . d = 0.02mm= 2x105m D = m for minima Im = (am + b) 22 Yo = 20 [1st Jask fring 81 = (1+4) = [se] 8 = (2+4) Sy = 311 = () (443) (1) 2x 27705 - 3x15²m y = 3cm hence second order dask fringe 3cm away from central maximum.

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