Zinc and cadmium have photoelectric work functions given by WZn = 4.33 eV and WCd = 4.22 eV, respectively.
(a) If both metals are illuminated by UV radiation of the same wavelength, which one gives off photoelectrons with the greater maximum kinetic energy? Explain.
(b) Calculate the maximum kinetic energy of photoelectrons from each surface if ( = 275 nm? |
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