Q9
A fission chain reaction in uranium can be developed
A.
By increasing the contents of U235
B.
By slowing down fast neutrons so that U235 fission continues by slow neutron
C.
Both (A) and (B)
AnswerD.
None of these
Answer: Option C
Solution
Answer: Option C
Solution:
Nuclear chain reactions are series of nuclear fissions (splitting of atomic nuclei), each initiated by a neutron produced in a preceding fission.A fission chain reaction in uranium can be developed by increasing the contents of U235 and by slowing down fast neutrons so that U235 fission continues by slow neutron.