JEE Main & Advanced Physics Ray Optics Sample Paper Topic Test - Refraction of Light Through Curved Surfaces

  • question_answer
    The observer 'O' sees the distance AB as infinitely large. If refractive index of liquid is \[{{\mu }_{1}}\] and that of glass is \[{{\mu }_{2}}\], then \[\frac{{{\mu }_{1}}}{{{\mu }_{2}}}\] is:            

    A) 2

    B) 1/2              

    C) 4

    D) None of these

    Correct Answer: A

    Solution :

    [a] Using formula of spherical surface taking 'B' as object \[\frac{{{\mu }_{2}}}{\infty }-\frac{{{\mu }_{1}}}{(-2R)}=\frac{{{\mu }_{2}}-{{\mu }_{1}}}{-R}\] (R being the radius of the curved surface) \[\Rightarrow \]   \[\frac{{{\mu }_{1}}}{{{\mu }_{2}}}=2\]

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