Physics
Grade-10
Easy

Question

Which substance can be used as both a coolant and a moderator in a nuclear reactor?

  1. Graphite
  2. Carbon dioxide
  3. Heavy water
  4. Helium

hintHint:

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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