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Light at 633 nm from a helium–neon laser shines on a pair of parallel slits separated...

Light at 633 nm from a helium–neon laser shines on a pair of parallel slits separated by 1.45 x10^-5 m and an interference pattern is observed on a screen 2.00 m from the plane of the slits. (a) Find the angle (in degrees) from the central maximum to the first bright fringe. (b) At what angle (in degrees) from the central maximum does the second dark fringe appear? (c) Find the distance (in m) from the central maximum to the first bright fringe.

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θニ2.5 9 6.266 145 xIoS 0.0813 m

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