JEE Main & Advanced Chemistry Structure of Atom / परमाणु संरचना Question Bank Atomic models and Planck's quantum theory

  • question_answer
    The specific charge of proton is \[9.6\times {{10}^{6}}C\,k{{g}^{-1}}\] then for an a-particle it will be                                       [MH CET 1999]

    A)                 \[38.4\times {{10}^{7}}C\,k{{g}^{-1}}\]  

    B)                 \[19.2\times {{10}^{7}}C\,k{{g}^{-1}}\]

    C)                 \[2.4\times {{10}^{7}}C\,k{{g}^{-1}}\]    

    D)                 \[4.8\times {{10}^{7}}C\,k{{g}^{-1}}\]

    Correct Answer: D

    Solution :

                    \[{{\left( \frac{q}{m} \right)}_{\alpha }}=\frac{1}{2}{{\left( \frac{q}{m} \right)}_{p}}=\frac{1}{2}\times 9.6\times {{10}^{7}}=4.8\times {{10}^{7}}C\,k{{g}^{-1}}\]


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