WB JEE Medical WB JEE Medical Solved Paper-2008

  • question_answer
    The refractive indices of glass and quartz w. r. t. air are 3/2 and 12/5 respectively. The refractive index of quartz w. r. t. glass is

    A)  8/5                                       

    B)  5/8

    C)  5/18                                     

    D)  18/5

    Correct Answer: A

    Solution :

                     Given that, \[{{\,}^{a}}{{\mu }_{g}}=\frac{3}{2}\]and \[{{\,}^{a}}{{\mu }_{q}}=\frac{12}{5}\] So, we get \[\therefore \]\[{{\,}^{g}}{{\mu }_{q}}=\frac{{{\mu }_{q}}}{{{\mu }_{a}}}.\frac{{{\mu }_{a}}}{{{\mu }_{g}}}=\frac{{{\mu }_{q}}}{{{\mu }_{g}}}=\frac{12}{5}\times \frac{2}{3}=\frac{8}{5}\]


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