JEE Main & Advanced Physics Question Bank Prism Theory and Dispersion of Light

  • question_answer
    The refractive index of flint glass for blue F line is 1.6333 and red C line is 1.6161. If the refractive index for yellow D line is 1.622, the dispersive power of the glass is

    A)            0.0276                                     

    B)            0.276

    C)            2.76                                          

    D)            0.106

    Correct Answer: A

    Solution :

               \[\omega =\frac{{{\mu }_{F}}-{{\mu }_{C}}}{({{\mu }_{D}}-1)}=\frac{(1.6333-1.6161)}{(1.622-1)}\]= 0.0276


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