JEE Main & Advanced Physics Ray Optics Question Bank Refraction of Light at Plane Surfaces

  • question_answer
    The refractive indices of glass and water w.r.t. air are 3/2 and 4/3 respectively. The refractive index of glass w.r.t. water will be  [MNR 1990; JIPMER 1997, 2000; MP PET 2000]

    A)            8/9

    B)            9/8

    C)            7/6

    D)            None of these

    Correct Answer: B

    Solution :

                       \[_{a}{{\mu }_{g}}=\frac{3}{2},{{\,}_{a}}{{\mu }_{w}}=\frac{4}{3}\]            \[\therefore \] \[_{w}{{\mu }_{g}}=\frac{_{a}{{\mu }_{g}}}{_{a}{{\mu }_{w}}}=\frac{3/2}{4/3}=\frac{9}{8}\]


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