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

  • question_answer
    4 eV is the energy of the incident photon and the work function in \[2eV.\] What is the stopping potential           [DCE 2000; AIIMS 2004]

    A)            2V 

    B)            4V

    C)            6V 

    D)            \[2\sqrt{2}V\]

    Correct Answer: A

    Solution :

               \[E={{W}_{0}}+e{{V}_{0}}\Rightarrow 4eV=2eV+e{{V}_{0}}\Rightarrow {{V}_{0}}=2\ volt\]


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