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In a Young's double slit experiment set ...

In a Young's double slit experiment set up, slits are kept `0.4` mm apart from each other screen is kept 2 m apart from slit. The fringe for a givne monochoromatic light is `0.8mm`. If the whole set up is kept in medium of refractive index `1.6,` the fringe width becomes

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In Young's double experiment, slits are kept 0.4 mm apart from each other and the screen is placed at 2 m from the slit. The fringe width for a given monochromatic source of light is 0.8 mm. if the whole set up is kept in a medium of R.I. 1.6 , the fringe width will be

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