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If a 20-MeV Neutron Released in a Fission Reaction Loses Half Its

Question 8

Multiple Choice

If a 2.0-MeV neutron released in a fission reaction loses half its kinetic energy in each moderator collision, how many collisions are needed to reduce its kinetic energy to 1/25eV1 / 25 \mathrm { eV } ?


A) 30
B) 4
C) 26
D) 18
E) 6

Correct Answer:

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