Refraction of light — Difficult
Transfer your understanding to a changed context, justify decisions and check your reasoning. No hints during the test.
Includes extension practice
Refractive index and Snell’s law are included. Recall of sin c = 1/n is not specified and is treated here as extension.
Easy, Normal and Difficult describe practice demand; they are not the official Core and Extended tiers.
- Cambridge IGCSE Physical Science 0652 syllabus 2025–2026 · P3.2.2, p34
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