In this paper we describe an experiment in which radiation emitted by an infrared remote control is passed through a diffraction grating. An image of the diffraction pattern is captured using a cell phone camera and then used to determine the wavelength of the radiation.1
REFERENCES
1.
Corresponding ideas were previously published in
J.
Kuhn
, P.
Vogt
, and S.
Müller
, “Neue Experimente mit dem Handy im Physikunterricht
” (translated as “New Experiments with Cellphones in Physics Classroom Education”), edited by D.
Höttecke
, “Naturwissenschaftliche Bildung als Beitrag zur Gestaltung partizipativer Demokratie: GDCP-Jahrestagung in Potsdam 2010
” (translated as “Science Education as Contribution of Ideas for Creating Participative Democracy: GDCP-Annual Conference Proceedings, Potsdam/Germany 2010”) (LIT-Verlag, Münster
/Germany
, 2011
);J.
Kuhn
, P.
Vogt
, and S.
Müller
, “Handys und Smartphones — Einsatzmöglichkeiten und Beispielexperimente im Physikunterricht
” (translated as “Cellphones and Smartphones — Capabilities and Examples of Experiments in Physics Classroom Education“), Praxis der Naturwissenschaften — Physik in der Schule
(translated as “Practice of Sciences — Physics in School“), 7
, 60, 5
–11
;F.
Catelli
, O.
Giovannini
, and V. D. A.
Bolzan
, “Estimating the infrared radiation wavelength emitted by a remote control device using a digital camera
,” Phys. Educ.
46
, 219
–222
(March 2011
).2.
Cross-grating films with 900 lines per millimeter (and others) could be ordered for example from Urhammer (a German company for teaching materials; see www. urhammer.de).
© 2012 American Association of Physics Teachers.
2012
American Association of Physics Teachers
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