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written by Gary Gladding
published by the University of llinois Physics Education Research Group
This interactive homework problem shows a coherent beam of photons incident on a double slit.  Students are asked to duplicate the interference/diffraction pattern of photons using electrons instead.  The slit width, space between slits, and distance to screen are all given in the problem.   Finally, students must determine the kinetic energy of one of the electrons.

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.  It is part of a larger collection of interactive problems developed by the Illinois Physics Education Research Group.
Subjects Levels Resource Types
Modern Physics
- Elementary Particles
Optics
- Diffraction
- Interference
- Lower Undergraduate
- Instructional Material
= Activity
= Problem/Problem Set
= Tutorial
Intended Users Formats Ratings
- Learners
- text/html
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Access Rights:
Free access
Restriction:
© 2002 University of Illinois Physics Education Research Group
Keywords:
Planck's Constant, diffraction, double slit, electrons, homework problem, interactive problem, interference, kinetic energy, problem
Record Cloner:
Metadata instance created February 8, 2008 by Alea Smith
Record Updated:
August 3, 2016 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://per.physics.illinois.edu/per/IE/ie.pl?phys102/ie/12/particles).
AJP/PRST-PER
G. Gladding, Illinois PER Interactive Examples: A Tale of Two Particles, (University of llinois Physics Education Research Group, Urbana, 2002), <http://per.physics.illinois.edu/per/IE/ie.pl?phys102/ie/12/particles>.
APA Format
Gladding, G. (2006, June 16). Illinois PER Interactive Examples: A Tale of Two Particles. Retrieved September 15, 2019, from University of llinois Physics Education Research Group: http://per.physics.illinois.edu/per/IE/ie.pl?phys102/ie/12/particles
Chicago Format
Gladding, Gary. Illinois PER Interactive Examples: A Tale of Two Particles. Urbana: University of llinois Physics Education Research Group, June 16, 2006. http://per.physics.illinois.edu/per/IE/ie.pl?phys102/ie/12/particles (accessed 15 September 2019).
MLA Format
Gladding, Gary. Illinois PER Interactive Examples: A Tale of Two Particles. Urbana: University of llinois Physics Education Research Group, 2002. 16 June 2006. 15 Sep. 2019 <http://per.physics.illinois.edu/per/IE/ie.pl?phys102/ie/12/particles>.
BibTeX Export Format
@misc{ Author = "Gary Gladding", Title = {Illinois PER Interactive Examples: A Tale of Two Particles}, Publisher = {University of llinois Physics Education Research Group}, Volume = {2019}, Number = {15 September 2019}, Month = {June 16, 2006}, Year = {2002} }
Refer Export Format

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

EndNote Export Format

%0 Electronic Source
%A Gladding, Gary
%D June 16, 2006
%T Illinois PER Interactive Examples: A Tale of Two Particles
%I University of llinois Physics Education Research Group
%V 2019
%N 15 September 2019
%8 June 16, 2006
%9 text/html
%U http://per.physics.illinois.edu/per/IE/ie.pl?phys102/ie/12/particles


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The AIP Style presented is based on information from the AIP Style Manual.

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Illinois PER Interactive Examples: A Tale of Two Particles:

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

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