Geometrical Optics – 6A00.00
- Speed of Light – 6A01.00
- Straight Line Propagation – 6A02.00
- Reflection from Flat Surfaces – 6A10.00
- Reflection from Curved Surfaces – 6A20.00
- Refractive Index – 6A40.00
- Refraction at Flat Surfaces – 6A42.00
- Total Internal Reflection – 6A44.00
- Rainbow – 6A46.00
- Thin Lens – 6A60.00
- Thick Lens – 6A65.00
- Pinhole – 6A61.00
- Optical Instruments – 6A70.00