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O-LevelPhysicsNuclear Physics5054/12 · May/June 2023 · Q381 Mark

What is the purpose of moderators in nuclear reactors?

Ato absorb all the neutrons in order to stop the chain reaction
Bto produce more neutrons in order to create a chain reaction
Cto remove thermal energy in order to control the chain reaction
Dto slow down neutrons in order to continue the chain reaction

✓ Correct answer

D: to slow down neutrons in order to continue the chain reaction

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About this question

Topic
Nuclear Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source
O-Level Physics, May/June 2023 Paper 1 Variant 2, question 38.

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