This experiment kit is designed to study the wave nature of light through diffraction and interference experiments. Based on Huygens’ Principle, it enables students to investigate the behavior of light as a wave rather than a simple ray. Using various slit configurations and a laser source, students can measure the wavelength of light, analyze diffraction and interference patterns, and study the influence of slit width and spacing. A high-precision photodetector allows accurate measurement of light intensity distributions with a resolution of 0.01 mm.