Light of wavelength 345 nm shines on a piece of calcium metal. What is the speed of the ejected electron? (Light energy greater than that of the work function of calcium ends up as kinetic energy of the ejected electron.) Work function for calcium= 4.34 x 10^-19 J.© BrainMass Inc. brainmass.com December 19, 2018, 7:56 pm ad1c9bdddf
We have the Einstein relation for photoelectric effect as,
h v = h vo + (1/2) m v^2 = h vo + 0.5 m V^2 ----(1)
h = 6.625*10^-34 J S, the Planks constant, m = ...
We have the Einstein relation for photoelectric effect as h v = h vo + (1/2) m v^2 = h vo + 0.5 m V^2.