RAJASTHAN PMT Rajasthan - PMT Solved Paper-2005

  • question_answer The functions of moderators in nuclear reactor is to:

    A)  decrease the speed of neutrons

    B)  increase the speed of neutrons

    C)  decrease the speed of electrons

    D)  increase the speed of electrons

    Correct Answer: A

    Solution :

    In nuclear reactors the moderators are used to decrease (slowdown) the speed of neutrons. Heavy water, graphite is used for this purpose. While heavy water is the best moderator.

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