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Homework Statement
Young's fringes, produced by monochromatic laser light passing through slits 0.60mm apart, are viewed on a screen. The distance accrose 20 fringe spacings on the screen is 58mm. When the screen is moved 0.80m away from the slits, the distance across 20 fringe spacings becomes 74mm.
Homework Equations
Y = D(lamda) / d
Y = Fringe Width
D = Distance from slits to screen
d = spacing between slits
(lamda) = Wavelength
The Attempt at a Solution
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