JEE Main & Advanced Physics Photo Electric Effect, X- Rays & Matter Waves Question Bank Graphical Questions

  • question_answer
    A point source of light is used in an experiment on photoelectric effect. Which of the following curves best represents the variation of photo current (i) with distance  of the source from the emitter

    A)            a

    B)            b

    C)            c

    D)            d

    Correct Answer: D

    Solution :

               \[I\propto \frac{1}{{{d}^{2}}}\] and photo current \[i\propto I\] Þ \[i\propto \frac{1}{{{d}^{2}}}\]


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