(a) How many bright fringes appear between the first diffraction envelope minima to either side of the central maximum in a double slit pattern if 550 nm, d 0 150nm, and a 30 0m (b) What is the ratio of the intensity of the third bright fringe to the intensity of the central fringe

Question: (a) How many bright fringes appear between the first diffraction-envelope minima to either side of the central maximum in a double-slit pattern if =

(a) How many bright fringes appear between the first diffraction-envelope minima to either side of the central maximum in a double-slit pattern if λ = 550 nm, d = 0.150nm, and a = 30.0μm?

(b) What is the ratio of the intensity of the third bright fringe to the intensity of the central fringe?

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