If $V$ is the accelerating voltage,then the maximum frequency of continuous $X$-rays is given by

In $X$-ray spectrum,the wavelength $\lambda$ of the $K_{\alpha}$ line depends on the atomic number $Z$ as:

Hard $X$-rays produced from a Coolidge tube are due to .........

When $X$-rays from a Coolidge tube pass through an aluminum foil of thickness $0.3 \, mm$,$50\%$ of the $X$-rays are transmitted. If the potential difference between the target and the cathode is increased,the fraction of $X$-rays transmitted through the same foil will be .......

$A$ metal block is exposed to beams of $X$-rays of different wavelengths. $X$-rays of which wavelength penetrate most?

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: