What is the effect on the interference fringes in Young's double slit experiment when the monochromatic source is replaced by a source of white light?
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the monochromatic source is replaced by a source of white light, then there will be colourful interference fringes,consisting of seven colours
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So if monochromatic light in Young's double-slit experiment is replaced by white light, then the waves of every wavelength form their separate interference patterns. ... Hence the waves of all colors reach a middle point R in the same phase. So the central fringe is white.
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