Question

The wavelength of characteristic X-rays depends upon

• A. Temperature of target
• B. Size of target
• C. Atomic number of target
• D. Mass of target

Answer 1

The correct option is C Atomic number of target

Characteristic Wavelength

$\frac{1}{\lambda }=Z^{2}R(\frac{1}{n_1^2}-\frac{1}{n_2^2})$

$\lambda \propto \frac{1}{Z^2}$

Here, Z is the atomic no. of the target