The unit of radioactivity is

A. Electron volt

B. Electron ampere

C. Curie


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  1. Each fission of U₂₃₅ produces on the average _________ fast neutrons as a product…
  2. The total energy released in fission of U is
  3. The energy released during the fission of one atom of Uranium 235 in million electron volts is about
  4. The main interest of shielding in nuclear reactor is protection against
  5. When a reactor becomes critical, then the production of neutrons is
  6. The presence of reflector in nuclear power plants results in
  7. Which of the following is more appropriate for a moderator? One which
  8. The process by which a heavy nucleus is spitted into two light nuclei is known as
  9. Reactors for propulsion applications use
  10. Breeder reactors employ liquid metal coolant because it
  11. Which of the following statement is correct regarding the features of a Breeder reactor?
  12. Which of the following type of pump is used in liquid metal cooled reactor for circulation of liquid…
  13. In natural uranium, the constituents of three naturally occuring isotopes are
  14. Ferrite material is
  15. A fast breeder reactor uses
  16. A pressurised water reactor employs pressurises for the following application
  17. Electron volt is the unit of
  18. In a fission process, maximum percentage of energy is released as
  19. The predominant isotope of the naturally occuring element is
  20. A boiling water reactor uses following as fuel
  21. The secondary fuel used in nuclear power plants is
  22. A fission chain reaction in uranium can be developed
  23. The function of control rods in nuclear plants is to
  24. Pick up the wrong statement
  25. Effective moderators are those materials which contain
  26. The most commonly used moderator in nuclear plants is
  27. Gas cooled reactor uses following materials as moderator, and coolant
  28. The material most commonly used for shielding is
  29. A nuclear reactor is said to be critical when the neutron population in the reactor core is
  30. A nuclear unit becoming critical means