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

  • question_answer
    The critical angle of a medium with respect to air is \[{{45}^{o}}\]. The refractive index of medium is                        [MH CET 2003]

    A)            1.41                                          

    B)            1.2

    C)            1.5 

    D)            2

    Correct Answer: A

    Solution :

               \[\sin {{45}^{o}}=\frac{1}{\mu }\]\[\Rightarrow \mu =\sqrt{2}=1.41\]


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