Arduino-Based Experiment Demonstrating Malus's Law

Autor/inn/en	de Freitas, Welica P. S.; Cena, Cicero R.; Alves, Diego C. B.; Goncalves, Alem-Mar B.
Titel	Arduino-Based Experiment Demonstrating Malus's Law
Quelle	In: Physics Education, 53 (2018) 3, Artikel 035034 (4 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Goncalves, Alem-Mar B.)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0031-9120
Schlagwörter	Physics; Science Experiments; Scientific Principles; Scientific Concepts; Light; Measurement Equipment + Suchen Sie Ihr Suchwort? Physik; Licht; Messinstrument
Abstract	Malus's law states that the intensity of light after passing through two polarizers is proportional to the square of the cosine of the angle between the polarizers. We present a simple setup demonstrating this law. The novelty of our work is that we use a multi-turn potentiometer mechanically linked to one of the polarizers to measure the polarizer's rotation angle while keeping the other polarizer fixed. Both the potentiometer and light sensor used to measure the transmitted light intensity are connected to an Arduino board so that the intensity of light is measured as a function of the rotation angle. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01