Abstract

DUQUE, M.F.; GOMEZ P, D., S.; PINILLA C, C.C.  and  DUQUE D., C.A.. Refractómetro de cubeta de sección cuadrada. Rev. mex. fís. E [online]. 2006, vol.52, n.2, pp.172-176. ISSN 1870-3542.

In this paper a simple and accurate method to measure refraction index for liquid substances is described. It is based on a cubic edge refractometer, where probes for several liquids such as common Water and Ethylic Alcohol were done. Also, a measure of refraction index for a Water-Ethylic Alcohol mixture at different concentration levels was carried out. We show results for all those experiments together with a detailed description of the refractometer operation. Finally a mathematical relation between refraction index and concentration level is given by the Water-Ethylic Alcohol experiment.

Keywords : Index of refraction; liquid substances; geometrical optics.