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

  • question_answer
    Photo cell is a device to                                            [MP PET 1993]

    A)            Store photons                     

    B)            Measure light intensity   

    C)            Convert photon energy into mechanical energy

    D)            Store electrical energy for replacing storage batteries

    Correct Answer: B

    Solution :

               Number of electrons can be measured which are directly proportional to the intensity of radiation.


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