A simple presentation to aid explanation of the role of radiation intensity in the photoelectric effect once the threshold frequency of the metal has been exceeded. Students often misunderstand the inability of increased intensity to trigger the photoelectric effect and therefore believe it has no role. This presentation is a visual aid to help the teacher show that it has a role in controlling the number of photons arriving per unit time.
This presentation compares a source of low intensity blue with high intensity blue light (where blue light has a frequency above the threshold frequency).
This is a Keynote presentation (macOS, iPadOS and iOS).
Useful for all A-Level physics specifications.
The photoelectric effect is an important experiment in physics that proves that light behaves like a particle, it was a founding experiment for quantum theory. Einstein won his Nobel prize for his work on explaining the photoelectric effect.
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