A nucleus in an excited state will return to its ground state, emitting a gamma ray in the process. If its mean lifetime in a particular exited state is about 6.35×10-12 s, explain what is the uncertainty in the energy of the corresponding gamma ray photon?
And, explain what is the uncertainty in the frequency of the gamma ray?
Consider an electron constrained to travel in a '1-dimensional box' of length 4.510×10-9 m. Click here for more information on a particle in a box. Explain what is the energy of electron for the n=4 state?
Explain what is the wavelength of the photon emitted if the electron drops from the third excited state (n=4) to the ground state (n=1)?