An electron in a one-dimensional box has ground-state energy 0.010 eV.
(a) What is the length of the box?
(b) Sketch the wave functions for the lowest three energy states of the electron.
(c) What is the wavelength of the electron in its second excited state (n = 3)?
(d) The electron is in its ground state when it absorbs a photon of wavelength 15.5 μm. Find the wavelengths of the photon(s) that could be emitted by the electron subsequently.