The resolution limit of a microscope is approximately equal to the wavelength of light used in producing the image. Electron microscopes utilize an electron beam in place of photons to produce much higher resolution images, about 0.22 nm in modern instruments.
Presuming that the resolution of an electron microscope is equal to the de Broglie wavelength of the electrons utilized, to what speed should the electrons be accelerated to obtain a resolution of 0.22?