question_answer

In X-ray spectrum, transition of an electron from an outer shell to an inner shell gives a characteristics X-ray spectral line. If we consider the spectral line\[{{K}_{\beta }}\], \[{{L}_{\beta }}\] and \[{{M}_{\alpha }},\]then:

A)  \[{{K}_{\beta }}\] and \[{{L}_{\beta }}\] have a common inner shell

B)  \[{{K}_{\beta }}\] and \[{{L}_{\beta }}\] have a common outer shell

C)  \[{{L}_{\beta }}\] and \[{{M}_{\alpha }}\] have a common outer shell

D)  \[{{L}_{\beta }}\] and \[{{M}_{\alpha }}\]have a common innter shell