GREPhysics.NET: GR9677 #42

GR9677 #42

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Quantum Mechanics $\Rightarrow$ }Photoelectric Effect

Recall the photoelectric equation relating the incident electromagnetic wave to the kinetic energy and the work function $hc/\lambda = K+\phi \ approx 12E-7/500E-9 = K+2.28 \Rightarrow K = 12E-7/5E-7-2.28\approx 0.2 eV$ , as in choice (B).

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vortex
2005-12-05 15:50:02

As a twist of fate!, the formula is given in question 27.

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As a twist of fate!, the formula is given in question 27.

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