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

  • question_answer
    If critical angle for a material to air is 30o, the refractive index of the material will be                         [MP PET 2001]

    A)            1.0

    B)            1.5

    C)            2.0 

    D)            2.5

    Correct Answer: C

    Solution :

               \[\mu =\frac{1}{\sin C}=\frac{1}{\sin 30}=2\]


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