EAMCET Medical EAMCET Medical Solved Paper-2009

  • question_answer
    A glass slab of thickness 8 cm contains the same number of waves as 10 cm long path of water when both are traversed by the same monochromatic light. If the refractive index of water is \[\frac{4}{3}\], the refractive index of glass is

    A)  \[\frac{5}{3}\]                                  

    B)  \[\frac{5}{4}\]

    C)   \[\frac{16}{15}\]                                            

    D)  \[\frac{3}{2}\]

    Correct Answer: A

    Solution :

     \[_{a}{{n}_{w}}=\frac{4}{3}\] and                        \[_{w}{{n}_{g}}=\left( \frac{10}{8} \right)\] \[\therefore \]  \[_{a}{{n}_{g}}{{=}_{a}}{{n}_{w}}{{\times }_{w}}{{n}_{g}}\] \[=\frac{4}{3}\times \frac{10}{8}=\left( \frac{5}{3} \right)\]


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