Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich outcome results when operating a subcritical nuclear reactor?
A)Neutron population decays exponentially✓
B)Produces sustained controlled chain reaction
C)Continuous increase in power output
D)Achieves immediate criticality spontaneously
💡 Explanation
Neutron population decays because sustained fission requires criticality; the neutron multiplication factor must be less than one causing exponential decay rather than a chain reaction. Therefore, the reaction dies out, rather than being sustained, because it is below the critical threshold.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which outcome increases when pulsed laser light interacts with a photorefractive crystal?
- Which outcome follows if a reaction has reached activation energy?
- Which risk increases when microwave waveguide flange surfaces degrade?
- Which risk increases when a catalyst loses surface?
- Which risk increases when protective coatings' thickness approaches light wavelengths?
- Which outcome occurs inside a quantum dot when increasing the compressive strain on its crystal lattice to shift its electron's probability density?
