CONSTRUCTION OF MULTI-SCENARIO DYNAMIC SIMULATION PLATFORM FOR DOUBLE-SLIT INTERFERENCE BASED ON GEOGEBRA

To dynamically and intuitively demonstrate double-slit interference in university physics courses and to further integrate digital technology into teaching practice, this study uses GeoGebra, a cross-platform open-source dynamic graphing software, to construct a multi-scenario dynamic simulation platform for double-slit interference. The platform enables independent adjustment and control of all relevant physical parameters in double-slit interference experiments, including the incident wavelength, slit separation, screen distance, source position, refractive index of the medium, inserted thin films, and incident amplitudes. It also provides multidimensional visualizations, including interference light-intensity distribution curves and bright-dark fringe patterns. Within a single interactive interface, the platform can simulate and demonstrate the experimental laws of double-slit interference under multiple parameter settings and physical scenarios. The construction of this platform not only supports theoretical teaching through intuitive and dynamic classroom demonstrations, but also provides students with an easy-to-use practical tool for independent learning, extracurricular inquiry, and exploratory innovation.