Pls answer 22nd question and tell relation bt photoelectric effect and intensity

Dear Student
When distance is becoem 4 times, the intensity of incident light becomes one-sixteenth (I1r2 =142=116)So number of photons per second decreases as intensity decreases.So number of electron ejected decreases.Hence photoelectric current decreases in proportional to Intensity.So new photoelectric current will be Io16
Regards

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