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QUESTION
An isolated copper sphere of radius 4.85 cm, initially uncharged, is illuminated by ultraviolet light of wavelength 244 nm. The work function for...
An isolated copper sphere of radius 4.85 cm, initially uncharged, is illuminated by ultraviolet light of wavelength 244 nm. The work function for copper is 4.70 eV. What charge does the photoelectric effect induce on the sphere?
