I have long been impressed with the extensive number of experiments that can be done with light-emitting diodes (LEDs). The ubiquity and affordability of LEDs continues to provide promise for new inquiry-style experiments. In this article, I describe a few innovations that I have added to the repertoire of the LED as physics equipment. Some of these experiments are on the physics of color, especially with concerns to unusually colored diodes, but mostly they are on new ways to help students and teachers get to know how diodes work and what makes them such special apparatus.
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TECHNOLOGY IN THE CLASSROOM| May 01 2020
James Lincoln; What is a pink diode? Further experiments with LED technology. Phys. Teach. 1 May 2020; 58 (5): 364–365. https://doi.org/10.1119/1.5145542
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