Question

who invented the electron microscope, what does it use insted of light, what magnificient is it capable of, how big is the electron microscope.

Answer 1

The electron microscope was invented by the German scientists, Max Knoll and Ernst Ruska in 1931. An electron microscope consists of an electron gun which fires high speed electrons to the target specimen, which is to be viewed. The electron beam is accelerated using a positive potential and can be focussed using magnetic lenses. They can provide surprisingly high magnifications on screen and even topographical details.