To resolve details of an object, you must use a wavelength that is about the same size,

Question:

To resolve details of an object, you must use a wavelength that is about the same size, or smaller, than the details you want to observe. Suppose you want to study a molecule that is about 1.000 × 10−10 m in length.
(a) What minimum photon energy is required to study this molecule?
(b) What is the minimum kinetic energy of electrons that could study this?
(c) Through what potential difference should the electrons be accelerated to reach this energy?