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Question
Identify the substance used as a moderator in nuclear reactors.
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Solution
The correct option is D Graphite
Graphite is used as a moderator to slow down fast-moving neutrons to speeds which are more favourable to the fission process. Also, the low neutron absorption ability of graphite also plays an important role because graphite will not absorb many neutrons that can potentially stop the nuclear chain reaction.
Graphite is used as a moderator to slow down fast-moving neutrons to speeds which are more favourable to the fission process. Also, the low neutron absorption ability of graphite also plays an important role because graphite will not absorb many neutrons that can potentially stop the nuclear chain reaction.
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