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

  • question_answer
    Einstein's photoelectric equation states that                                                                                          \[{{E}_{k}}=h\nu -\varphi\] . In this equation                                                                                              \[3\times {{10}^{23}}\]  refers to [CPMT 1982; MP PMT 1997]

    A)            Kinetic energy of all the emitted electrons

    B)            Mean kinetic energy of the emitted electrons

    C)            Maximum kinetic energy of the emitted electrons

    D)            Minimum kinetic energy of the emitted electrons

    Correct Answer: C

    Solution :

               According to Einstein's photoelectric equation.


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