A certain medical machine emits $x-$rays with a minimum wavelength of $0\mathrm{.}025$ nm $.$ One day, the machine has an electrical problem and the voltage applied to the $x-$ray tube decreases to $74\%$ of its normal value.

What is the minimum $x-$ray wavelength produced by the machine?

${}_{\text{m}\text{i}\text{n}}=$ nm

What is the maximum $x-$ray energy this machine $($with electrical problems$)$ can produce?

$E_{\text{m}\text{a}\text{x}}=$ eV

The atomic number of an element is $82.$ According to the Bohr model, what is the energy of a $K_{a}x$ ray photon?

$E=$ eV