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http://dx.doi.org/10.3807/KJOP.2017.28.6.334

Science Teachers' Perception of the Refractive Index of Media  

Park, Sang-Tae (Department of Physics Education, Kongju National University)
Yeom, Jun-Hyeok (Department of Physics Education, Kongju National University)
Yoon, Yeo-Won (Department of Physics Education, Kongju National University)
Seok, Hyojun (Department of Physics Education, Kongju National University)
Publication Information
Korean Journal of Optics and Photonics / v.28, no.6, 2017 , pp. 334-338 More about this Journal
Abstract
This research aims at investigating science teachers' perception of the refractive index of materials, and thus achieving proper information transmission and teaching of refractive index. Specifically, we have made questionnaires on what physical factors influence the refractive index of a liquid easily available in secondary schools. It was found that 80.0% of science teachers perceived that the density has the greatest influence on the refractive index, among a variety of factors such as molecular structure, the number of molecules per unit volume, mass of each molecule, and the wavelength of light, to mention just a few. This may be due to the fact that current textbooks deal with the refraction of light based on analogy to a mechanical wave. Such a misunderstanding may lead to confusion and misunderstanding for students.
Keywords
Refractive index; Misconceptions; Science teachers' perception;
Citations & Related Records
Times Cited By KSCI : 11  (Citation Analysis)
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