Quantum Physics

OCR AS-level PhysicsTopic 9 of 94 lessons

Revision notes for Quantum Physics in OCR Physics A (H156). Every lesson in BrainCake comes with R.E.C.I.P.E. recall steps, a quick check and spaced reviews.

1. The Energy of a Photon and the Planck ConstantMax Planck discovered that light appears to exist as little packets called quanta.
2. The Electron VoltOn the quantum level the SI unit the joule is huge so a smaller unit of energy is needed.
3. The Photoelectric EffectWhen a gold-leaf electroscope is negatively charged the leaf and the rod repel each other.
4. The Photoelectric Effect Equation and Wave-Particle DualityEinstein's photoelectric effect equation :hf = φ + KEmax.

On the specification

• 4.5.1 Photons
• 4.5.2 The photoelectric effect

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