A) 6
B) 4
C) 11
D) 44
Correct Answer: A
Solution :
From Moseley's law, \[\sqrt{v}=a(z-1)\]for \[{{K}_{\alpha }}\,x-ray\]\[\frac{1}{\sqrt{\lambda }}\propto a(z-1)\Rightarrow \frac{1}{\sqrt{\lambda }}\propto a(11-1)\] and\[\frac{1}{\sqrt{4\lambda }}\propto a(z-1)\Rightarrow \frac{10}{z-1}=2\Rightarrow z=6.\] Hence, the correction option is .You need to login to perform this action.
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