11 phys30monapr19 maybeuvvisible orinfrared

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Unformatted text preview: Using E = nhf number of quanta ­ usually 1 E = hf frequency of EMR note the units recall c = f λ ­ using substitution f = c λ E = hc this is the energy of a quanta of λ EMR with a certain wavelength 7 Phys 30 Mon Apr 19 Workbook p 232 ­ #3 8 Phys 30 Mon Apr 19 Workbook p 232 ­ #4 9 Phys 30 Mon Apr 19 Workbook p 233 ­ #8 10 Phys 30 Mon Apr 19 Know the general ideas in this chart !! 11 Phys 30 Mon Apr 19 may be uv, visible or infrared all or none ­ light must be of high enough f or no effect particle model of light 12 Phys 30 Mon Apr 19 13 Phys 30 Mon Apr 19 Photoelectric effect is another application of the conservation of energy. incoming light energy W = hfo Ekmax = qVstop website ­ http://phet.colorado.edu/simulations/sims.php?sim=Photoelectric_Effect energy used to "fre...
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