Chapter 4 · NCERT
Light: Reflection & Refraction
4 topics in 1 parts
Key ideas
| Approach | Time Complexity | Auxiliary Space | Key Limitation |
|---|---|---|---|
| Brute Force Approach | O(N²) or O(2ᴺ) | O(1) / Minimal | Times out on large constraints ($N > 10^4$) |
| Optimal Approach | O(N) or O(N log N) | O(1) / O(N) | Requires sorted invariant or hash set lookup |
| Theoretical Lower Bound | Ω(N) | O(1) | Must inspect every element at least once |
All 4 topics in Light: Reflection & Refraction
Light: Reflection & Refraction
- Concave & Convex Mirror Ray Diagrams
- Mirror Formula & Magnification
- Snell's Law & Refractive Index
- Convex & Concave Lenses & Lens Formula