A gas of hydrogen atoms in their ground state is bombarded by electrons with kinetic energy 12.5eV. What emitted wavelengths would you expect to see? What if the electrons were replaced by photons of the same energy?
(a) A gas of hydrogen atoms in their ground state is bombarded by electrons with kinetic energy 12.5eV. What emitted wavelengths would you expect to see?
(b) What if the electrons were replaced by photons of the same energy?