JEE Main & Advanced Physics Ray Optics Question Bank Total Internal Reflection

  • question_answer
    The critical angle for a medium is \[{{60}^{o}}\]. The refractive index of the medium is                                    [MP PMT 2004]

    A)            \[\frac{2}{\sqrt{3}}\]        

    B)            \[\frac{\sqrt{2}}{3}\]

    C)            \[\sqrt{3}\]                           

    D)            \[\frac{\sqrt{3}}{2}\]

    Correct Answer: A

    Solution :

               \[\mu =\frac{1}{\sin C}=\frac{1}{\sin {{60}^{o}}}\]\[=\frac{2}{\sqrt{3}}\]


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