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

  • question_answer
    If intensity of incident light is increased in PEE then which of the following is true                                              [RPET 2001]

    A)            Maximum K.E. of ejected electron will increase

    B)            Work function will remain unchanged

    C)            Stopping potential will decrease

    D)            Maximum K.E. of ejected electron will decrease

    Correct Answer: B

    Solution :

               With the increase in intensity of light photoelectric current increases, but Kinetic energy of ejected electron, stopping potential and work function remains unchanged.


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