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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2004

  • question_answer
        The focal lengths of convex lens for red and blue light are 100 cm and 96.8 cm respectively. The dispersive power of material of lens is :

    A)  0.325                                   

    B)  0.0325

    C)  0.98                                      

    D)  0.968

    Correct Answer: B

    Solution :

                    Here : \[\text{C}{{\text{H}}_{\text{3}}}\text{N}{{\text{H}}_{\text{2}}}\] SO,         \[\text{C}{{\text{H}}_{\text{3}}}\text{CHO}\] \[{{\text{H}}_{\text{2}}}\text{O}\] \[\text{A}{{\text{g}}^{+}}\] From     \[\text{N}{{\text{H}}_{\text{3}}}\] \[O{{H}^{-}}\] \[{{N}_{2}}{{O}_{4}}\xrightarrow{{}}2N{{O}_{2}}\]


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