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Refraction and reflection of light – Ray simulation

Refraction and Reflection – Ray Diagrams Simulation Description A light ray travels down through air and crosses a boundary into a denser medium, bending toward the normal as it does. The simulation draws the incident ray (blue), the refracted ray (its colour matching the chosen medium), and a faint reflected ray (green), with angle arcs

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Echo simulation

Echo & Sound Reflection Simulation This interactive simulation shows how sound waves travel from a source, strike a reflective surface, and return as an echo. Pupils can switch between four illustrated environments — a cliff face, a city building, a canyon, and an underwater SONAR scene — each rendered with atmospheric depth. Pressing ▶ Send

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