Heavy water is used as a moderator in a nuclear reactor. The function of the moderator is
A. to control the energy released in the reactor
B. to absorb neutrons and stop the chain reaction
C. to cool the reactor
D. to slow down the neutrons to thermal energy
Answer: Option D
This Question Belongs to Physics GK Chapter Wise >> Modern Physics
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. . . . . . . . invented Atom Bomb.
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D. Samuel Colt
A. when low speed electrons is ejected
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