ch38-p026 - 26. (a) For the first and second case (labeled...

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() 12 15 11 17 1.85eV 0.820eV 4.12 10 eV s. 3.00 10 nm/s 300nm 400nm eV V h c −− == = × ⎡⎤ λ− λ ×− ⎣⎦ (b) The work function is Φ= = = 3 0820 185 300 400 227 22 ( . ( . . VV λλ eV)(400 nm) eV)(300 nm) nm eV. (c) Let Φ = hc / λ max to obtain λ max . = hc Φ 1240 545 eV nm eV nm. 26. (a) For the first and second case (labeled 1 and 2) we have
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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