Pre-AP Physics Lenses & Ray Diagrams. Allen High School. Thin lenses. Mirrors reflect, Lenses Refract!!! Those of you with glasses or contacts are thankful for lenses, because they redirect light rays to help you see better (shine light on your retina). Lenses :
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Allen High School
1. Converging Lens – converge light to a single point (Focal Point)
2. Diverging Lens – diverge light away from a single point.
1. Ray Diagram
2. Equations (next PowerPoint)
Use a Ruler!