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Description

Use a photoelectric effect apparatus to investigate the photoelectric effect. Calculate a value for Planck's constant and the work function of the cathode.

Outcomes:

  • Develop a practical understanding of the photoelectric effect.
  • Calculate a value for Planck's constant and work function of a substance.

Links to Stage 6 Physics Syllabus Content

PH12-14/Light: Quantum Model

  • Analyse the experimental evidence gathered about black body radiation, including Wien’s Law related to Planck's contribution to a changed model of light. (ACSPH137).
  • Investigate the evidence from photoelectric effect investigations that demonstrated inconsistency with the wave model for light. (ACSPH087, ACSPH123, ACSPH137).
  • Analyse the photoelectric effect as it occurs in metallic elements by applying the law of conservation of energy and the photon model of light. (ACSPH119).