Cambridge (CIE) · IGCSE · 0973

Detection of radioactivity — Difficult

Transfer your understanding to a changed context, justify decisions and check your reasoning. No hints during the test.

Syllabus 2028–20295 questions~50 minutesSamples 5 of 5 linked lessons

Includes extension practice

Detection, background sources and count rates are included. Background-subtraction calculations extend the stated half-life assessment scope.

Easy, Normal and Difficult describe practice demand; they are not the official Core and Extended tiers.

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