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In photo electric effect, the energy photonstriking a metallic surface is 5.6x10^-19 J. Thekinetic energy of the ejected electrons is12.0x10^-20 J. Find the work function is |
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Answer» Hii its tom85 we know that T.E = work function + k.E given E= 5.6*10^-19j k.E=12*10^-20j work function=T.E - K.E work function=56*10^-20 - 12*10^-20 work function=10^-20(56 - 12) work function=44*10^-20 work function =4.4*10^-19j work function = it is define as the the amount of energy give to the metal SURFACE to eject a electron on its surface . concept when large amount of energy(photon) given on the surface of metal it eject electron and ALSO increase its kinetic energy . so T.E = k.E + work function photoelectric EFFECT show that partical NATURE of electron . __________/\__________☺️ hope it helps you dude |
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