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Lesson 2

Lesson 2: The Photoelectric Effect, Compton Scattering and De Broglie Wavelength

Lesson parts

2.1 Why electrons stay inside a metalWhy electrons stay inside a metal2.1

2.2 Thermionic emission and the cathode-ray tube (CRT)Thermionic emission and the cathode-ray tube (CRT)2.2

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2.3 The photoelectric effectThe photoelectric effect2.3

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2.4 Einstein's explanation (1905)Einstein's explanation (1905)2.4

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2.5 Stopping potential and the graphsStopping potential and the graphs2.5

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2.6 Using the energy unit eVUsing the energy unit eV2.6

2.7 Worked examples (Lesson 2)Worked examples (Lesson 2)2.7

2.8 The Compton effectThe Compton effect2.8

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2.9 Properties of the photonProperties of the photon2.9

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2.10 Radiation force (light pressure)Radiation force (light pressure)2.10

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2.11 Macroscopic and microscopic models of lightMacroscopic and microscopic models of light2.11

2.12 Reflection or transmission of photonsReflection or transmission of photons2.12

2.13 Worked examples (Lesson 3)Worked examples (Lesson 3)2.13

2.14 De Broglie's idea (1923)De Broglie's idea (1923)2.14

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2.15 Why do we not notice the wave nature of a ball?Why do we not notice the wave nature of a ball?2.15

2.16 Wavelength of an accelerated electronWavelength of an accelerated electron2.16

2.17 The electron microscopeThe electron microscope2.17

2.18 Comparison: optical and electron microscopeComparison: optical and electron microscope2.18

2.19 Worked examples (Lesson 4)Worked examples (Lesson 4)2.19

2.20 Chapter summary (key points)Chapter summary (key points)2.20

2.21 Common mistakes to avoidCommon mistakes to avoid2.21