MCQ
$\gamma$-decay occurs when
  • A
    Pair annihilation takes place
  • B
    Energy is released due to conversion of neutron into proton
  • Energy is released due to de-excitation of nucleus
  • D
    None of these

Answer

Correct option: C.
Energy is released due to de-excitation of nucleus
c
(c)

In gamma decay, a nucleus changes from a higher energy state to a lower energy state through the emission of electromagnetic radiation (photons). The number of protons (and neutrons) in the nucleus does not change in this process, so the parent and daughter atoms are the same chemical element.

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