JEE Main & Advanced Physics Photo Electric Effect, X- Rays & Matter Waves Question Bank Graphical Questions

  • question_answer
    Figure represents the graph of photo current I versus applied voltage (V). The maximum energy of the emitted photoelectrons is

    A)            2eV

    B)            4 eV

    C)            0 eV

    D)            4 J

    Correct Answer: B

    Solution :

                       From the graph stopping potential |Vs|= ?V Also kmax = (|V0|eV = 4eV.         


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