Make diffraction and interference engaging, visual, and exam-ready for your Physics students!This complete resource combines a multi-tab interactive HTML app, a structured student worksheet, and a detailed answer key to support deep conceptual understanding of single slit, double slit, and diffraction grating patterns. Perfect for guided inquiry, lab-style learning, or pre-exam review, this activity helps students connect theory, simulation, and calculation in a meaningful way. What’s Inclu