The photon energies used in different types of medical x-ray imaging vary widely, depending upon the application. Single dental \(x\) rays use photons with energies of about \(25 \mathrm{keV}\). The photon energy used for \(\mathrm{x}\)-ray microtomography, a process that allows repeated imaging in single planes at varying depths within the sample, is 2.5 times greater. What are the wavelengths of the \(\mathrm{x}\) rays used for these two purposes?