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Coherent light (600 nm) passes through two narrow slits separated by 0.04 mm. An interference pattern...

Coherent light (600 nm) passes through two narrow slits separated by 0.04 mm. An interference pattern is observed on a screen at a distance 1.50 m away. (a) What is the vertical distance of the second maximum (not counting the central maximum) from the center of the interference pattern? (b) At what distance from the center does the intensity fall to 1/4th of the intensity at the center?

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