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MBA, Ph.D in Management
Harvard university
Feb-1997 - Aug-2003
Professor
Strayer University
Jan-2007 - Present
Light from a helium-neon laser (λ = 633 nm) is used to illuminate two narrow slits. The interference pattern is observed on a screen 3.4 m behind the slits. Twelve bright fringes are seen, spanning a distance of 54 mm .
Part A
What is the spacing (in mm) between the slits?Â
Express your answer using two significant figures.
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