Refraction of light — Easy
Recall and familiar applications. Optional hints help you find a first step.
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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