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

  • question_answer
    An electron of charge ?e? coulomb passes through a potential difference of \[V\] volts. Its energy in ?joules? will be [MP PET 2000]

    A)            \[V/e\]                                   

    B)            eV

    C)            \[e/V\]                                   

    D)            V

    Correct Answer: B

    Solution :

               \[K=QV=\,e\times \,V=\,eV\]


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