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QUESTION
A double-slit experiment is set up using red light ( = 706 nm). A first order bright fringe is seen at a given location on a screen.
A double-slit experiment is set up using red light (λ = 706 nm). A first order bright fringe is seen at a given location on a screen. What wavelength of visible light (between 380 nm and 750 nm) would produce a dark fringe at the identical location on the screen?
