SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-2

  • question_answer
    Neutrons are slowed down in a nuclear reactor by

    A)  Fissionable material       

    B)  Moderator  

    C)  Control rods     

    D)         Cooling system

    Correct Answer: B

    Solution :

     In thermal nuclear reactors, the coolant acts as a moderator that must slow down the neutrons before they can be efficiently absorbed by the fuel. It allows neutrons to slow down to energies where they can easily cause a nucleus to fission.


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