WAEC Physics 2022 Objective — Question 27
Question 27 of 50 from the West African Examinations Council (WAEC) Physics 2022 Objective paper, with the correct answer and a full explanation.
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The speed of fast moving neutrons in a nuclear reactor can be reduced by using A. graphite rods.
- A. concrete shieldCorrect
- B. iron rods
- C. boron rods
Explanation
Graphite rods act as a moderator in nuclear reactors, slowing down (reducing the speed of) fast-moving neutrons through elastic collisions.
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