Consider the Following Energy-Level Diagram for a Particular Electron in an Atom

Multiple Choice

Consider the following energy-level diagram for a particular electron in an atom. Based on this diagram,which of the following statements is incorrect?

A) The wavelength of a photon emitted by the electron jumping from level 2 to level 1 is given by .
B) If the electron is in level 1,it may jump to level 2 by absorbing a photon with energy of ΔE.
C) If the electron is in level 1,it may jump to level 2 by absorbing any photon having energy of at least ΔE.
D) We would observe an electron jumping from level 2 to level 1 as a single line in a line spectrum.
E) If the electron is in level 2,it may jump to level 1 by emitting a photon with energy of |ΔE|.