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

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

    A) 2V

    B) 4V

    C) 6V

    D) \[2\sqrt{2}V\]

    Correct Answer: A

    Solution :

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

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