The human eye can detect 10 -18 J of energy. A photoelectric effect experiment is performed with an unknown metal. From these observations compute both Planck's constant, and the work function of the metal. We can do a simple calculation of the lowest energy state using Heisenberg's Uncertainty principle, and treating this as a one-dimensional problem.
T is the temperature in Kelvins.
The simple Bohr model of the atom neglects the special theory of relativity. In this problem you will estimate the change in the ground state energy due to relativistic effects. This is a sheet of extra scratch paper. If you run out of room on the other pages given, use this sheet.