Physics
Grade-10
Easy
Question
Which substance can be used as both a coolant and a moderator in a nuclear reactor?
- Graphite
- Carbon dioxide
- Heavy water
- Helium
Hint:
The heavy water can be used as a coolant and moderator in nuclear reactors.
The correct answer is: Heavy water
- The moderators are used to slow down the neutrons in nuclear fission.
- The coolant is used to cool down the heat which is not transferred or converted.
- The heavy water can be used both as the coolant and the moderator.
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