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CAIE A-Level Physics 22.2.1 Defining the Photoelectric Effect

Practise identifying photoelectron emission caused by radiation incident on a metal and stating the conditions required for the photoelectric effect.

Syllabus
2028–2030
Course
Physics 9702
Level
A2

Exam points

  • explain that photoelectrons may be emitted when electromagnetic radiation illuminates a metal surface
  • identify the conditions required for photoelectric emission

22.2.1—Photoelectrons may be emitted from a metal surface when it is illuminated by question 1

[Maximum number: 2]

Explain what is meant by the photoelectric effect.

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