Question
Physics Question on Atoms
γ− rays are originated from
A
nucleus
B
outermost shell of nucleus
C
innermost shell of nucleus
D
None of the above
Answer
nucleus
Explanation
Solution
When an alpha or a beta decay takes place, the daughter nucleus is generally formed in one of its excited states eventually comes to its ground state by emitting a photon or photons of electromagnetic radiation.
The process of a nucleus coming down to a lower energy level by emitting a photon is called gamma decay.
Hence γ− rays are originated from excited nucleus.