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Two slits spaced 0.235 mm apart are placed 0.695 m from a screen and illuminated by coherent light with a wavelength of 655 nm. The intensity at the center of the central maximum (-0 s o (a) What is the distance on the screen from the center of the central maximum to the first minimum? (b) What is the distance on the screen from the center of the central maximum to the point where the intensity has fallen to Io/2?

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3 6-695 93 X10 m 93 m - 7-4-6x10 q m or 0.746 mm

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