Energy and momentum of a photon
22.1What the syllabus asks of you
- understand that electromagnetic radiation has a particulate nature
- understand that a photon is a quantum of electromagnetic energy
- recall and use E = hf
- use the electronvolt (eV) as a unit of energy
- understand that a photon has momentum and that the momentum is given by p = E / c
Read the notes first
Chapter 22: Energy and momentum of a photon
Drill this topic
All 14 questions on Energy and momentum of a photon, untimed — answer on paper, then mark yourself against the mark scheme.
Make a worksheet
Choose the years and how many questions, then print it with the answers on separate pages.
14 questions
These are structured questions, answered in working rather than by picking an option, so they are not listed here one by one. The drill above puts each in front of you with its mark scheme to check against.

