Photoelectric Example: Difference between revisions

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(New page: ''Source:'' "Theory and problems of Modern Physcis", Ronald Gautreau,Problem 9.13 '''Problem:''' The emitter in a photoelectric tube has a threshold wavelength of 6000 A. Determine the wa...)
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Revision as of 09:21, 9 December 2009

Source: "Theory and problems of Modern Physcis", Ronald Gautreau,Problem 9.13

Problem: The emitter in a photoelectric tube has a threshold wavelength of 6000 A. Determine the wavelength of the light incident on the tube if the stopping potential for this light is 2.5 V.

Solution: The work function is

The photoelectric equation then gives