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← ScienceWhich outcome limits efficiency during Uranium-235 nuclear fission?
A)Neutron moderation becomes insufficient
B)Fission product neutron absorption increases✓
C)Critical reaction rate decreases anyway
D)Gamma radiation energy quickly drops
💡 Explanation
Fission products accumulating strongly absorb neutrons, therefore reducing the number of neutrons available to sustain the chain reaction—a process called neutron poisoning—rather than neutron moderation becoming insufficient or failing to propagate a critical reaction rate.
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