In a hypothetical experiment to demonstrate the photoelectric effect, a light source of variable frequency is shone on a photo-sensitive surface. Ejected photoelectrons are collected by an anode. A graph of the resulting photocurrent (I) as a function of frequency (f) looks like this. Select your answers to the questions below from these graphs. A. B. C. D. Which graph would be most appropriate when, the intensity of the light is increased?
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