What is the difference between light microscopy from an electron microscopy?

The main difference between light microscopy from an electron microscopy is their resolution. Electron microscopy has much high resolution, due to the much short wavelength of the electron compared to light. The visible light wavelength ranges from 380nm to 750nm. The electron wavelength is called De Broglie material wavelength defined as λ = h/p, where h is the Planck's constant, and p the momentum of the electron. The high the p, the smaller the wavelength. Typically it is in angstrom range.