Question

The photon energies used in different types of medical x-rayimaging vary widely, depending upon the application. Single dentalx rays use photons with energies of about 25 {\rm keV}. Theenergies used for x-ray microtomography, a process that allowsrepeated imaging in single planes at varying depths within thesample, is 2.5 times greater.

What are the wavelengths of the x rays used for these two purposes?answer in m
\lambda_{\rm dental}
\lambda_{\rm microtomography}