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

  • question_answer
    The number of photo-electrons emitted per second from a metal surface increases when                    [EAMCET (Med.) 1995; CBSE PMT 1993; MP PMT 1994, 2002; MH CET 1999; KCET 2003]

    A)            The energy of incident photons increases

    B)            The frequency of incident light increases

    C)            The wavelength of the incident light increases

    D)            The intensity of the incident light increases

    Correct Answer: D

    Solution :

               Intensity µ (No. of photons) µ (No. of photoelectrons)


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