You shine red laser light of wavelength 685 nm on two closely spaced slits. This creates a pattern on a screen that is 2.10 m from the double slit. The m = 3 bright fringe in this pattern is 9.15 mm from the central bright fringe. (a) What is the distance between the slits? (b) What would be the distance between the central and m = 3 bright fringes if you used green laser light of wavelength 515 nm?

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You shine red laser light of wavelength 685 nm on two
closely spaced slits. This creates a pattern on a screen that is 2.10 m
from the double slit. The m = 3 bright fringe in this pattern is 9.15 mm
from the central bright fringe. (a) What is the distance between the slits?
(b) What would be the distance between the central and m = 3 bright
fringes if you used green laser light of wavelength 515 nm?

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