Problem- In a gas discharge tube filled with atomic hydrogen an incident proton (not photon!) excites an electron in H from the ground state to n=3
a. Calculate the maximum value of the de Broglie wavelength (m) of the incident proton.
b. Calculate the wavelength (m) of the photon emitted when the excited electron falls back to the ground state.
Your answer must be supported by illustrations, Please answer with work shown to receive points