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[" 67.(i) A ray of light incident of "],...

[" 67.(i) A ray of light incident of "],[" face "AB" of an equilateral "],[" glass prism,shows "],[" minimum deviation of "8],[30^(@)" .Calculate the spriam."],[" of light through the spridence at face "],[AB" ,so that the emergent ray grazes "],[AB" ,so that the emergent ray grazes "],[" along the face "AC" .Dethi "2017],[" along the face "AC" .Dethi "2017]

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