It is possible for a dark fringe for two different wavelengths to occur at the same angle. Consider light of wavelength 600. nm and 500. nm. They both have a dark fringe at 2.87mrad. For what minimum slit width is this possible (in mm)?

It is possible for a dark fringe for two different wavelengths to occur at the same angle. Consider light of wavelength 600. nm and 500. nm. They both have a dark fringe at 2.87mrad. For what minimum slit width is this possible (in mm)?

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It is possible for a dark fringe for two different wavelengths to occur at the same angle. Consider light of wavelength 600. nm and 500. nm. They both have a dark fringe at 2.87mrad. For what minimum slit width is this possible (in mm)?

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