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NEET Sample Paper NEET Sample Test Paper-55

  • question_answer
    Angles of minimum deviation is equal to the angle of prism A of an equilateral glass prism. The angle of incidence at which minimum deviation will be obtained is-

    A) \[60{}^\circ \]  

    B)   \[30{}^\circ \]

    C) \[45{}^\circ \]              

    D)   \[si{{n}^{-}}^{1}\left( 2/3 \right)\]

    Correct Answer: A

    Solution :

    \[i=\frac{{{\delta }_{m}}+A}{2}\,\,=\,\,\frac{60+60}{2}\,\,=\,\,60{}^\circ \]


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