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Which of the following is used in a nuclear reactor to slow down fast-moving neutrons?

Physics
WAEC 1996

Which of the following is used in a nuclear reactor to slow down fast-moving neutrons?

  • A. Carbondioxide gas
  • B. Liquid sodium metal
  • C. Concrete shield
  • D. Graphite rods
  • E. Boron rods
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Correct Answer: Option D
Explanation

Graphite is commonly used as a moderator in nuclear reactors to slow down fast-moving neutrons, making them more likely to induce further fission reactions.

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