$X-$rays are in nature similar to

The wavelength of $X-$rays is

Moseley's law for characteristic $X$-rays is given by $\sqrt{f} = a(Z - b)$. Choose the correct statement.

If the series limit of the Balmer series for hydrogen is $3646 \ \mathring{A}$,calculate the atomic number $(Z)$ of the element which gives an $X$-ray wavelength of the $K_{\alpha}$ line as $1.0 \ \mathring{A}$.

The ${K_{\alpha}}$ $X$-rays arising from a cobalt $(Z = 27)$ target have a wavelength of $179\, pm$. The ${K_{\alpha}}$ $X$-rays arising from a nickel target $(Z = 28)$ is

Moseley measured the frequency $(f)$ of the characteristic $X$-rays from many metals of different atomic number $(Z)$ and represented his results by a relation known as Moseley's law. This law is ($a, b$ are constants)