This study aims to measure Brewster’s angle of glass and acrylic brick with an easy-to-obtain mobile application (app) by changing the tungsten light source to a red laser. The popularization of the smartphone has inspired many to use its various built-in sensors to carry out general physics experiments. Many others have adopted both a laser and a light sensor to perform such measurements. In Refs. 10 and 11, the devices required specific software and are not widely available in physics laboratories. In this paper, we present a similar study, but one that has the advantage that it uses the ambient light sensor of the smartphone. In this work, a simple and inexpensive experimental setup is proposed to quantitatively measure Brewster’s angle.
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February 2019
IPHYSICSLABS|
February 01 2019
Use smartphones to measure Brewster’s angle
Chun-Ming Chiang;
Chun-Ming Chiang
Physics Teaching and Research Center, Feng Chia University
, Taichung 40724, Taiwan
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Han-Yang Cheng
Han-Yang Cheng
Physics Teaching and Research Center, Feng Chia University
, Taichung 40724, Taiwan
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Phys. Teach. 57, 118–119 (2019)
Citation
Chun-Ming Chiang, Han-Yang Cheng; Use smartphones to measure Brewster’s angle. Phys. Teach. 1 February 2019; 57 (2): 118–119. https://doi.org/10.1119/1.5088478
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