The Wavelength of the Emitted Photon If an Electron in the Hydrogen

Multiple Choice

The wavelength of the emitted photon if an electron in the hydrogen atom makes a transition from the n = 2 state to the ground state is closest to which of the following values? (c = 3.0 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s,1 eV = 1.60 × 10^-19 J)

A) 122 nm
B) 203 nm
C) 243 nm
D) 389 nm
E) 411 nm