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A double-slit experiment produces an interference pattern on a screen 2.8 m m away from slits....

A double-slit experiment produces an interference pattern on a screen 2.8 m m away from slits. Light of wavelength λ= 520 nm n m  falls on the slits from a distant source. The distance between adjacent bright fringes is 7.2 mm m m . Part A Find the distance between the two slits. Express your answer using three significant figures. Part B Determine the distance to the 5th order dark fringe from the central fringe. Express your answer using three significant figures.

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