When an electron makes a transition from the n=4 to the n=2hydrogen atom Bohr orbit, the energy difference between these twoorbits (4.1x10-19J) is emitted as a photon of light. Therelationship between the energy of a photon and its wavelenght isgiven by E=hc/, where E is the energy of thephoton in J, h is Planck's constant (6.626x10-34J s), and c is thespeed of light (3.00x108m/s). Find the wavelenght oflight emitted by hydrogen atoms when an electron makes thistransition.
