JEE Main & Advanced Physics Photo Electric Effect, X- Rays & Matter Waves Question Bank Cathode Rays and Positive Rays

  • question_answer
    The specific charge of an electron is [MP PMT/PET 1998; J&K CET 2004; Pb. PET 2002; MH CET 1999]

    A)            \[1.6\times {{10}^{-19}}coulomb\]

    B)            \[4.8\times {{10}^{-10}}stat\ coulomb\]

    C)            \[1.76\times {{10}^{11}}coulomb/kg\]

    D)            \[|8|\times {{10}^{-15}}Hz\]

    Correct Answer: C

    Solution :

               \[\frac{e}{m}=\frac{1.6\times {{10}^{-19}}}{9.1\times {{10}^{-31}}}=1.76\times {{10}^{11}}C/kg\]


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