O-LevelPhysicsNuclear Physics5054/11 · May/June 2018 · Q361 Mark

Thin aluminium foil is used in cooking. The diagram shows a system used to control the thickness of aluminium foil being made in a factory. What is the most suitable radioactive source for the system?

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Asource: beta, half-life of source: 1 hour

Bsource: beta, half-life of source: 6 years

Csource: gamma, half-life of source: 1 hour

Dsource: gamma, half-life of source: 6 years

✓ Correct answer

B: source: beta, half-life of source: 6 years

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Topic: Nuclear Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2018 Paper 1 Variant 1, question 36.

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