An electron, starting from rest, is accelerated through a potential difference of V…

PHYSICS · Subjective · Fermi University Physics · Quantum Mechanics · Origins of quantum theory · Origins of quantum theory

Quantum Mechanics: From the Photon to the Hydrogen Atom, Ch Matter waves and wave-particle duality

Problem

An electron, starting from rest, is accelerated through a potential difference of

100

V in a vacuum and then travels freely. Treat the motion as non-relativistic and ignore any energy loss. Take

h = 6.626\times10^{-34}

J s,

m_e = 9.109\times10^{-31}

kg and

1

= 1.602\times10^{-19}

J.Compute the de Broglie wavelength of the electron, in nm.