An Electron in the N = 3 State of a Hydrogen

Multiple Choice

An electron in the n = 3 state of a hydrogen atom falls into the n = 2 state. The Rydberg constant R is 1.097 × 10^-2/nm. The wavelength of the photon emitted is approximately

A) 103 nm.
B) 110 nm.
C) 122 nm.
D) 486 nm.
E) 656 nm.