Photons from a source each have energy 3.30 eV. Photons from a second source have twice the frequency as those from the first source. What is the energy of a photon from the second source?
A) 6.60 eV
B) 13.2 eV
C) 1.65 eV
D) 0.825 eV
E) 3.30 eV

Question

Quizplus · Accepted Answer

The energy of a photon is directly proportional to its frequency. If the second source has photons with twice the frequency of the first source, then the energy of these photons will also be twice that of the first source. Therefore, the energy of a photon from the second source is 2 * 3.30 eV = 6.60 eV.

Photons from a Source Each Have Energy 3