The minimum wavelength of $X$-rays produced by an $X$-ray tube depends on which of the following?

$X$-ray beam of intensity $I_0$ passes through an absorption plate of thickness $d$. If the absorption coefficient of the material of the plate is $\mu$,the correct statement regarding the transmitted intensity $I$ of the $X$-ray is:

An $X$-ray tube is operating at $50 kV$ and $20 mA$. The target material of the tube has a mass of $1.0 kg$ and specific heat $495 J kg^{-1} {}^\circ C^{-1}$. One percent of the supplied electric power is converted into $X$-rays and the entire remaining energy goes into heating the target. Then:

In the characteristic $X$-ray spectra of an atom superimposed on a continuous $X$-ray spectrum, identify the peaks $P$ and $Q$ shown in the graph.

If the potential difference $V$ applied to the Coolidge tube is doubled, then the cut-off wavelength

An $X$-ray tube is operated at $50\, kV$. The minimum wavelength produced is ....... $\mathring{A}$.