Question

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 lines $K_{\beta },L_{\beta },M_{\alpha }$ 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 shel1
• D. $L_{\beta }$ and $M_{\alpha }$ have a common inner shell

Answer 1

Answer: (C)

$L_{\beta }$ and $M_{\alpha }$ have a common outer shel1

$K_{\alpha }$ means, electron jumps from L shell to K shell.
similarly $L_{\alpha }$ means electron jumps from M shell to L shell
$L_{\beta }$ means electron jumps from N shell to L shell.
$M_{\alpha }$ means electron jumps from N shell to M shell.