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JIPMER Jipmer Medical Solved Paper-2012

  • question_answer
    Which one of the following graph represents the variation of maximum kinetic energy \[({{E}_{k}})\]of the emitted electrons with frequency v in photoelectric effect correctly?

    A)      

    B)  

    C)  

    D)

    Correct Answer: D

    Solution :

    According to photoelectric equation \[{{E}_{k}}=hv-h{{v}_{0}}\] In order to eject the electrons from metal surface, the energy of photon \[(hv)\] must b greater than work function\[(h{{v}_{0}})\]. From above equation, when \[v={{v}_{0}},\]\[{{E}_{k}}=0.\]


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