O-LevelPhysicsNuclear Physics5054/11 · May/June 2023 · Q401 Mark

What is the nuclear reaction that takes place in stable stars?

Afission of helium to produce hydrogen

Bfission of hydrogen to produce helium

Cfusion of helium into hydrogen

Dfusion of hydrogen into helium

✓ Correct answer

D: 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 2023 Paper 1 Variant 1, question 40.

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