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Photons, photoelectric effect and line spectra
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Photon model and key equations

Photon model and key equations

Light can transfer energy in discrete packets called photons. The energy of one photon is E=hfE=hfE=hf, so frequency decides the energy carried by each photon.

Photons, photoelectric effect and line spectra Lesson

  1. A Level
  2. /Physics
  3. /Photons, photoelectric effect and line spectra

Step-by-step lessons on Edexcel A Level Physics Photons, photoelectric effect and line spectra. Each one builds up to exam-style questions. Physics is one of the most mathematically demanding A Levels -- at least 40% of the marks across the three papers require maths skills at Level 2 (GCSE) standard or above, so build calculation and graph-handling fluency alongside the conceptual content from the start.

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