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, Snell’s law and total internal reflection 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 Co-ordinated Sciences 0654 syllabus 2028–2029 · P3.2.2, pp64–65
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