Obtaining spectra using a smartphone in physics class

Abstract

This article presents the basics for converting a smartphone as a home spectrometer. Using a Compact Disc Digital Audio and a properly located slot, the emission spectrum of a compact fluorescent lamp and other sources can be observed. This work includes the methodological steps to measure the Fraunhofer's lines of the sun with the greatest spectral width. The proposal is designed to carry out a practical class of light spectra both from institutions of secondary education as well as in introductory courses in university physics.

Keywords

• espectroscopio
• trabajo práctico de laboratorio
• red de difracción
• smartphone
• líneas de fraunhofer