O-LevelPhysicsNuclear Physics5054/12 · May/June 2024 · Q401 Mark

What is the nuclear reaction that powers the Sun?

Athe fission of hydrogen into helium

Bthe fission of helium into hydrogen

Cthe fusion of hydrogen into helium

Dthe fusion of helium into hydrogen

✓ Correct answer

C: the fusion of hydrogen into helium

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Topic: Nuclear Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2024 Paper 1 Variant 2, question 40.

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