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

  • question_answer
    When ultraviolet rays are incident on metal plate, then photoelectric effect does not occurs. It occurs by the incidence of               [CBSE PMT 2002; DCE 1997; AIIMS 2004]

    A)            X-rays                                     

    B)            Radio wave

    C)            Infrared rays                        

    D)            Greenhouse effect

    Correct Answer: A

    Solution :

               \[{{\lambda }_{X-ray}}<{{\lambda }_{UV-ray}}\]


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