A two narrow slits 0286 mm apart are illuminated by light, Ask an Expert

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a) Two narrow slits 0.286 mm apart are illuminated by light of wavelength 542. nm. The light falls on a screen 1.60 m away from the slits. What is the angular seperation between adjacent maxima?

b) At what distance from the midline does the first minima fall on the screen?

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