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

  • question_answer
    The electrons are emitted in the photoelectric effect from a metal surface                                          [MP PET 1992]

    A)            Only if the frequency of the incident radiation is above a certain threshold value

    B)            Only if the temperature of the surface is high

    C)            At a rate that is independent of the nature of the metal

    D)            With a maximum velocity proportional to the frequency of the incident radiation

    Correct Answer: A

    Solution :

               Refer to threshold frequency.


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