💡 How to use this page: Tap any section to expand. Simulations are placed right after each concept — try them while the idea is fresh. This version has been patched against the Cambridge IGCSE Physics 0625 syllabus gaps for Waves.

• 🌍 Why This Matters

• 🧮 Maths You Need Here

• 🌊 1 — General Wave Properties (3.1)

• ↕️ 2 — Transverse, Longitudinal & Seismic Waves (3.2)

• 🧪 3 — Ripple Tank Experiments (3.3)

• 🪞 4 — Reflection of Light (3.4)

• 💧 5 — Refraction of Light (3.5)

• 🌈 6 — Total Internal Reflection & Optical Fibres (3.6)

• 🔍 7 — Thin Lenses (3.7)