In this article we present simple and low-cost experiments about the polarization of light. We use an LCD monitor or an RGB LED light bulb with a Polaroid as a source of polarized radiation, a polarizer sheet as an analyzer, and a smartphone camera to measure light intensities. Thus, using a digital camera to acquire videos students can explore in a quantitative manner the polarization of light by measuring the typical features of Malus' law. Both for the topic and the simplicity of the activities, this experiment is suitable for undergraduates.
Video analysis-based experiments regarding Malus' law / Rosi, Tommaso; Onorato, Pasquale. - In: PHYSICS EDUCATION. - ISSN 0031-9120. - 55:4(2020), pp. 045011.1-045011.5. [10.1088/1361-6552/ab853b]
Video analysis-based experiments regarding Malus' law
Rosi, Tommaso;Onorato, Pasquale
2020-01-01
Abstract
In this article we present simple and low-cost experiments about the polarization of light. We use an LCD monitor or an RGB LED light bulb with a Polaroid as a source of polarized radiation, a polarizer sheet as an analyzer, and a smartphone camera to measure light intensities. Thus, using a digital camera to acquire videos students can explore in a quantitative manner the polarization of light by measuring the typical features of Malus' law. Both for the topic and the simplicity of the activities, this experiment is suitable for undergraduates.| File | Dimensione | Formato | |
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2020 Malus - Rosi_2020_Phys._Educ._55_045011.pdf
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