The resolving power of a microscope depends on the wavelength utilized. If one wished to "see" a particular type of molecule, a resolution of 1.2 10-10 m would be needed.
a) If electrons are used (in an electron microscope), what minimum kinetic energy is needed for the electrons?
__________ keV
b) If photons are used, what minimum photon energy is needed to obtain the needed resolution?
__________ keV