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written by Gary Gladding
published by the University of llinois Physics Education Research Group
This interactive physics problem involves two light sources of differing wavelengths beamed at a metal object.  Maximum kinetic energy is 1 eV for the first beam and 4 eV for the second.   Using this information, the user is asked to find the work function of the metal.  

This problem is accompanied by a Socratic-dialog "help" sequence designed to encourage critical thinking as users do a guided conceptual analysis before attempting the mathematics.  Immediate feedback for both correct and incorrect responses is provided through each step of the problem-solving.  This item is part of a larger collection of interactive problems developed by the Illinois Physics Education Research Group.
Subjects Levels Resource Types
Education Practices
- Active Learning
= Problem Solving
Modern Physics
- Condensed Matter
Optics
- Modern Optics
- Lower Undergraduate
- Instructional Material
= Activity
= Problem/Problem Set
= Tutorial
Intended Users Formats Ratings
- Learners
- text/html
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© 2002 University of Illinois Physics Education Research Group
Keywords:
homework problem, interactive problem, light beams, photoelectron, photon, photon emission, problem, wavelength
Record Cloner:
Metadata instance created February 5, 2008 by Alea Smith
Record Updated:
March 12, 2013 by Lyle Barbato
Last Update
when Cataloged:
June 16, 2006
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Record Link
AIP Format
G. Gladding, (University of llinois Physics Education Research Group, Urbana, 2002), WWW Document, (http://research.physics.illinois.edu/per/IE/ie.pl?phys102/ie/12/pe1).
AJP/PRST-PER
G. Gladding, Illinois PER Interactive Examples: Photoelectric Effect I (University of llinois Physics Education Research Group, Urbana, 2002), <http://research.physics.illinois.edu/per/IE/ie.pl?phys102/ie/12/pe1>.
APA Format
Gladding, G. (2006, June 16). Illinois PER Interactive Examples: Photoelectric Effect I. Retrieved September 18, 2014, from University of llinois Physics Education Research Group: http://research.physics.illinois.edu/per/IE/ie.pl?phys102/ie/12/pe1
Chicago Format
Gladding, Gary. Illinois PER Interactive Examples: Photoelectric Effect I. Urbana: University of llinois Physics Education Research Group, June 16, 2006. http://research.physics.illinois.edu/per/IE/ie.pl?phys102/ie/12/pe1 (accessed 18 September 2014).
MLA Format
Gladding, Gary. Illinois PER Interactive Examples: Photoelectric Effect I. Urbana: University of llinois Physics Education Research Group, 2002. 16 June 2006. 18 Sep. 2014 <http://research.physics.illinois.edu/per/IE/ie.pl?phys102/ie/12/pe1>.
BibTeX Export Format
@misc{ Author = "Gary Gladding", Title = {Illinois PER Interactive Examples: Photoelectric Effect I}, Publisher = {University of llinois Physics Education Research Group}, Volume = {2014}, Number = {18 September 2014}, Month = {June 16, 2006}, Year = {2002} }
Refer Export Format

%A Gary Gladding
%T Illinois PER Interactive Examples: Photoelectric Effect I
%D June 16, 2006
%I University of llinois Physics Education Research Group
%C Urbana
%U http://research.physics.illinois.edu/per/IE/ie.pl?phys102/ie/12/pe1
%O text/html

EndNote Export Format

%0 Electronic Source
%A Gladding, Gary
%D June 16, 2006
%T Illinois PER Interactive Examples: Photoelectric Effect I
%I University of llinois Physics Education Research Group
%V 2014
%N 18 September 2014
%8 June 16, 2006
%9 text/html
%U http://research.physics.illinois.edu/per/IE/ie.pl?phys102/ie/12/pe1


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Illinois PER Interactive Examples: Photoelectric Effect I:

Is Part Of http://research.physics.uiuc.edu/PER/ie_102.html

This is a link to the full collection of interactive homework problems by the same author.  Complete problem sets are available for both algebra-based and calculus-based courses in introductory physics.

relation by Caroline Hall
Is Supplemented By PhET Simulation: Photoelectric Effect

Students can explore and visualize the photoelectric effect in this simulation that allows them to control intensity and wavelength of the light, change voltage accelerating the electrons, and select from a variety of metals.  Output graphs accompany the simulation.

relation by Caroline Hall

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