A thin flake of mica (n ! 1.58) is used to cover one slit
Chapter , Problem 27(choose chapter or problem)
A thin flake of mica (n ! 1.58) is used to cover one slit of a double-slit interference arrangement. The central point on the viewing screen is now occupied by what had been the seventh bright side fringe (m ! 7).If l ! 550 nm,what is the thickness of the mica?
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