Solved UPSC CDS/OTA Question
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Q · Modern PhysicsMedium · 45s
Heavy water is used as a moderator in nuclear reactors because: Option: 19
TopicModern Physics
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Heavy water slows down neutrons to sustain fission reactions efficiently.
19
Final Answer: Option B — It slows down fast neutrons
19