Demonstration of the Optical Reflection Property of an Ellipse

This GeoGebra applet demonstrates the optical reflection property of an ellipse. By constructing the foci, tangent, and normal lines, it visually illustrates the geometric principle that a light ray emitted from one focus of an ellipse will always pass through the other focus after reflecting off the boundary. Utilizing geometric objects such as vectors, tangents, orthogonal lines, and segments, t