Atomic StructureHard
Question
The wavelength of Kα-characteristic X-rays produced is λ, when cathode rays strike on a metal of atomic number Z. What should be the atomic number of metal such that it can produce the Kα-characteristic X-rays of wavelength 4λ?
Options
A.$\frac{Z}{16}$
B.$\frac{Z}{2}$
C.$\frac{Z + 1}{2}$
D.2Z – 1
Solution
$\sqrt{\frac{c}{\lambda}} = a(z - 1)\text{ and }\sqrt{\frac{c}{4\lambda}} = a(z' - 1)$
$\therefore z' = \frac{z + 1}{z}$
Create a free account to view solution
View Solution FreeMore Atomic Structure Questions
Which of the following ion will have maximum magnetic moment?...Uncertainty in position is twice the uncertainty in momentum. Uncertainty in velocity is :...′e′ configuration of element with minimum size will be :-...Which of the following has the maximum number of unpaired electrons ?...If electron is present in n1 orbit of hydrogen atom and n2 orbit of He+ ions then which of the following relation is cor...