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JEE Main & Advanced Physics Photo Electric Effect, X- Rays & Matter Waves Question Bank Self Evaluation Test - Dual Nature of Radiation and Matter

  • question_answer
    A point source causes photoelectric effect from a small metal plate. Which of the curves in Fig may represent the saturation photo - current as a function of the distance between the source and the metal?

    A) A 

    B) B   

    C) C

    D) D

    Correct Answer: D

    Solution :

    [d] Saturation current is inversely proportional to the square of distance of cathode from point source.


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