A typical uranium-235 fission releases more than one neutron. Why is the production of multiple neutrons important for sustaining a nuclear chain reaction?
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A typical uranium-235 fission releases more than one neutron. Why is the production of multiple neutrons important for sustaining a nuclear chain reaction?

G1 Physics · Accepted Answer

A chain reaction requires neutrons produced in one fission event to initiate further fissions. Because a typical U-235 fission releases about two to three neutrons, even after some neutrons escape or are absorbed without causing fission, enough may remain to produce additional fissions. This neutron multiplication makes a self-sustaining chain reaction possible when the reactor is critical. Correct option: B.