1. A photo emissive surface has a threshold frequency of 4.02x10^14 Hz. calculate, (i). the threshold wavelength (ii) the work function (iii). Kinetic energy of the emitted electron. [ c= 3x10^8 m/s, h = 6.63x10^-34Js]?
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Asked by dony on 9th June, 2020
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