Question

To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy, ?k , must the electrons have in order to resolve a protein molecule that is 7.50 nm in diameter? Take the mass of an electron to be 9.11×10−31 kg .

?k= J

Answer 1

I hope you will find the answer useful. Please rate. Cheers.