Answer to Question #94309 in Quantum Mechanics for Glorias

Question

The ground state energy of an electron in an infinite well is 2.6 x 10^-3
eV. What will
be the ground state energy if the width of the well is doubled?

Answer 1

The energy is inversely proportional to the square of the width of the potential well; accordingly, when the width is doubled, the energy will decrease by a factor of four, that is, 0.65 meV.