Thermal neutrons which are used to cause the fission of U-235 have energy _____________ eV?
Correct answer: A. < 0.025
- A. < 0.025
- B. > 1
- C. 1-25
- D. > 200
Explanation
Thermal neutrons have energies near 0.025 eV at room temperature, much lower than 1 eV. Thus the intended range is below 0.025 eV, with 0.025 eV representing the usual approximate value.
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