For an $X$-ray tube operating at $40 \, kV$, which of the following wavelengths is $NOT$ possible?

The shortest wavelength emitted from an $X$-ray tube depends on which of the following?

When $X$-rays pass through a high-intensity uniform magnetic field,they:

Consider the following two statements $A$ and $B$ and identify the correct choice in the given answer.
$A:$ The characteristic $X-$ray spectrum depends on the nature of the material of the target.
$B:$ The short wavelength limit of the continuous $X-$ray spectrum varies inversely with the potential difference applied to the $X-$ray tube.

The emission of continuous $X$-rays is due to:

On increasing the number of electrons striking the anode of an $X-$ray tube,which one of the following parameters of the resulting $X-$rays would increase?