Optical Measurements as an Extension of Physics Learning

Physics is not a very popular subject at colleges and grammar sc hools too. Therefore we have to use any opportunity to increase the attractiveness of physics for students. One of the possible ways is to suggest to students to carry out interesting experimental projects in order to extend their knowledge beyond the curriculum. When working on the project, students must under the guidance of the teacher analyse physical phenomena, design and construct apparatus, perform the measurements and then evaluate results. The article described one of the student’s projects. The aim of the project was to experimentally investigate the polarization of light by reflection. Built apparatus allow measuring the intensity of reflected light for P and S wave depending on the angle of incidence of light on the sample investigated. The students were able to verify Brewster law, measure refractive index and validate Fresnel formulas. The work on the project provide students the opportunity of insight into the nature of experimental methods in physics and carrying out qualitative and quantitative analysis of the studied phenomena. The imperfection of the apparatus allows students to suggest its improvements and in this way to be stimulated to creative work. © 2014 The Authors. Published by Elsevier Ltd. Selection and peer-review under responsibility of the Organizing Committee of WCLTA 2013.