Atomic StructureHard

Question

The ratio of wavelengths of Kα-characteristic X-rays produced when iron (Z = 26) and scandium (Z = 21) are used as anticathode is

Options

A.26: 21
B.4: 5
C.16: 25
D.25: 16

Solution

$\sqrt{\frac{c}{\lambda}} = a(z - b)$

$\therefore\frac{\lambda_{\text{iron}}}{\lambda_{\text{scandium}}} = \frac{(21 - 1)^{2}}{(26 - 1)^{2}} = \frac{16}{25}$

Create a free account to view solution

View Solution Free
Topic: Atomic Structure·Practice all Atomic Structure questions

More Atomic Structure Questions

Which of the following energy level may bring absorption of photon but never emission of photon?...The orbital having two nodal surfaces is...For a d-electron, the orbital angular momentum is :...Which of the following statements is/are correct?In the reaction xCu3P + y Cr2O72- Cu2+ + H3PO4 + Cr3+...The energy of hydrogen atom in its ground state is -13.6 eV. The energy of the level corresponding to n = 5 is :...