Which of the following nuclear materials is fissile ?
Correct answer: C. Plutonium-239
- A. Uranium-238
- B. Thorium-232
- C. Plutonium-239
- D. None of these
Explanation
Plutonium-239 is fissile because it can sustain a nuclear fission chain reaction with slow neutrons. Uranium-238 and thorium-232 are mainly fertile, as they require neutron capture and conversion to form fissile isotopes.
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