O-LevelPhysicsNuclear Physics5054/11 · May/June 2023 · Q381 Mark

A sample of tritium has a mass of 32 mg. Tritium has a half-life of 12 years. How much of the sample of tritium decays in 36 years?

A4.0 mg

B8.0 mg

C24 mg

D28 mg

✓ Correct answer

D: 28 mg

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Topic: Nuclear Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2023 Paper 1 Variant 1, question 38.

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