Cambridge AS & A Level Physics
22.2Photoelectric effect
Photoelectric effect in Cambridge AS & A Level Physics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic23 practice questions1 lesson
Learning objectives
What the syllabus expects you to be able to do.
- 22.2.1Describe photoelectric emission from a metal surface.
- 22.2.2Use threshold frequency and threshold wavelength.
- 22.2.3Explain photoelectric emission using photon energy and work function.
- 22.2.4Recall and use the photoelectric equation.
- 22.2.5Explain why maximum kinetic energy does not depend on intensity but photocurrent does.
Lessons
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The photoelectric effect
50 min
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Sample question
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Turn Photoelectric effect into a strength.
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