A scientist wants to use an electron microscope to observe details on the order of 0.25 nm. Through what potential difference must the electrons be accelerated from rest so that they have a de Broglie wavelength of this magnitude?
Answer to relevant QuestionsWhat is the energy of a beam of electrons that exhibits a first-order maximum at an angle of when diffracted by a crystal grating with a lattice plane spacing of 0.215 nm? Let’s model a nucleus as a particle trapped in the one-dimensional box. Assume the particle is a proton and it is in a one-dimensional nucleus of length of 7.11 fm (the approximate diameter of a Pb-208 nucleus). (a) Using ...Draw schematic diagrams for the electrons in the subshells of (a) Sodium (Na) and (b) Argon (Ar) atoms in the ground state. The energy of the first excited state of a hydrogen atom is –0.34eV ± 0.0003 eV. What is the minimum average lifetime for this state? An electron is accelerated from rest through a potential difference of 100 V. What is the de Broglie wave-length of the electron?
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