question_answer

Radioactive\[_{27}^{60}Co\]is transformed into stable\[_{28}^{60}Ni\]by emitting two\[\gamma -\]rays of energies

A)  1.33 MeV and 1.17 MeV in succession

B)  1.17 MeV and 1.33 MeV in succession

C)  1.37 MeV and 1.13 MeV in succession

D)  1.13 MeV and 1.37 MeV in succession

E)  1.17 MeV and 1.13 MeV in succession