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A laser with a wavelength of 470. nm illuminates two narrow slits. The interference pattern from...

A laser with a wavelength of 470. nm illuminates two narrow slits. The interference pattern from the double slits is viewed on a screen that is 3.30 m away. Over a distance of 41.0 mm there are 11.0 bright fringes with the first and last fringe situated exactly at each end of that distance. What is the spacing between the two slits?

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