Light & Optics Step by Step
A lightweight execution-visualization book.
Rays and Reflection
Light as Rays
Law of Reflection
Plane Mirror Image
Refraction and Lenses
Bending at a Boundary
Converging Lens Model
Focal Length
Images by Rays
Principal Rays
Real Image Intersection
Farther Image, Taller Image
Virtual Image Back-Trace
Lens Equation and Magnification
Lens Equation
Solve Image Distance
Magnification
Same Size Case
Mirrors
Concave Mirror Rays
Concave Mirror Equation
Convex Mirror Virtual Image
Sign and Side Audits
Lens Sign Audit
Mirror Sign Audit
Signed Height Audit
Lens Equation Inference Scans
Solve Object Distance
Solve Focal Length
Signed Height Linearity