A free electron of 2.6 eV energy collides with a ( H⁺ ) ion. This results in the formation of a hydrogen atom in the first excited state, and a photon is released. Find the frequency of the emitted photon.
a) ( 2.8 × 10¹⁴ ) Hz
b) ( 5.6 × 10¹⁴ ) Hz
c) ( 1.2 × 10¹⁵ ) Hz
d) ( 2.4 × 10¹⁵ ) Hz
