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12th Class Physics Nuclear Physics And Radioactivity Question Bank MCQs - Nuclei

  • question_answer
    Which of the following material will be the best moderator for a nuclear power plant?

    A) Lighter element  

    B) Heavier element 

    C) Both of the above

    D) None of the above

    Correct Answer: A

    Solution :

    Option (a) is correct. Explanation: Neutron will be slowed down more if the size of moderator atom is closer to a neutron. For this reason, lighter element will be more efficient moderator.


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