Physics A-Level
Rate of emission
What Rate of emission means in Physics A-Level, as defined for OCR.
Definition of Rate of emission
Check what you remember
Read the wording for your board, then hide it and explain Rate of emission in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Above the threshold frequency, the number of photoelectrons released per second, directly proportional to the intensity of the incident radiation.
Topics that use Rate of emission
- The photoelectric effect (OCR A-Level)
Related terms
- Conservation of energy in photon absorption
- Independence of KEmax from intensity
- Intensity
- Intensity as photons per second
- Maximum kinetic energy
- One-to-one interaction
- Photoelectric current
- Photoelectric emission
Using Rate of emission in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Physics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Physics A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge