In which one of the following ranges of the electromagnetic spectrum do photons have the MOST energy?
A) infrared
B) visible
C) ultraviolet
D) all of them since all electromagnetic photons have the same energy

Question

Quizplus · Accepted Answer

The energy of a photon is directly proportional to its frequency (E=hf) or inversely proportional to its wavelength (E=hc/λ), therefore, photons with higher frequencies or shorter wavelengths have more energy. Ultraviolet radiation has a higher frequency and shorter wavelength than infrared and visible light, so it has the most energy among these options. The statement in option D is incorrect, as the energy of a photon depends on its frequency/wavelength, and therefore different regions of the electromagnetic spectrum have different energy photons.

In Which One of the Following Ranges of the Electromagnetic