Photon Energy

The frequency of the light associated with each photon sets the energy shifted by each photon.

Physics Narrative 14-16

The frequency of a visible photon is measured in terahertz ( 400–700 terahertz ). The energy of such photons is measured in...

Physics Narrative 14-16

Photons are all-or-nothing entities: you cannot emit or absorb half a photon. (Remember that to detect a photon you have to...

Physics Narrative 14-16

In introducing the idea that light shifts energy in discrete chunks, it is important to emphasise to students the key...

Teaching Guidance 14-16