The material used to slow down the neutrons in a nuclear reactor is by Sunday | Mar 23 | Physics WAEC | 0 comments A. boron B. copper C. graphite D. uranium Correct Answer: Option C – graphite Users Also Read These:Nuclear fission is preferred to nuclear fusion in…The speed of fast-moving neutrons in a nuclear…The presence of nitrogen in air is to slow down?In a nuclear reactor, chain reactions result from…Which of the following materials is used to control…