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Two narrow slits 55 μm μ m apart are illuminated with light of wavelength 620nm n...

Two narrow slits 55 μm μ m apart are illuminated with light of wavelength 620nm n m . The light shines on a screen 1.2 m m distant.

a) What is the angle of the mm = 2 bright fringe?

b) How far is this fringe from the center of the pattern?

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