The wavelength `lambda` of the `K_(a)` line of characteristic `X` - ray spectra varies with atomic number approximately

Write a note on characteristic x-ray spectra :

Wavelength of K_(a) line of X-ray spectra varies with atomic number as

The wavelength lambda and the frequency f of a particular X- ray spectral line varies with the atomic number Z of the target element. In this event , Z is nearly proportional to

The line spectra are characteristics of

Line spectra is characteristic of :

Line spectra is characteristic of :

Line spectra is characteristic of :

Line spectra is characteristic of :

If Z is the atomic number of the target atom, then the frequency of the K_alpha line of the characteristic X ray spectrum is directly proportional to