Number of secondary neutron emitted on fission of an atom of U-235 by slow neutron bombardment is_______________?

A. α
B. β
C. γ
D. α & β

A. Barn
B. MeV
C. Curie
D. Ergs

A. Power generation
B. Treatment of certain diseases
C. Initiating nuclear fission and fusion
D. All A., B. and C.

A. Insulation lining of the reactor
B. Fuel
C. Lubricant
D. Retarder of neutron velocity

A. Fission products
B. Plutonium
C. Unused fuel
D. All A., B. & C.

A. Molten sodium
B. Heavy water
C. Ordinary water
D. Helium