The graph between the square root of the frequency of a specific line of characteristic spectrum of `X` - rays and the atomic number of the target will be

The graph that correctly represents the relation of frequency v of a particular characteristic X - ray with the atomic number Z of the material is

The graph that correctly represents the relation of frequency v of a particular characteristic X - ray with the atomic number Z of the material is

Approximately linear relationship between the square roots of the frequencies of the X-rays emitted by a number of different elements and the atomic numbers was discovered by:

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

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

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