O-LevelPhysicsNuclear Physics5054/11 · May/June 2020 · Q181 Mark

In which situation is energy being released by the fusion of hydrogen nuclei to form helium?

Ain the decay of ¹⁴C used to date an object

Bin a radioactive isotope emitting alpha-particles

Cin the centre of the Earth

Din the centre of the Sun

✓ Correct answer

D: in the centre of the Sun

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Topic: Nuclear Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2020 Paper 1 Variant 1, question 18.

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