477
SELF-ASSESSMENT CHECKLIST
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describe the concept of a photon
22.1
calculate the energy of a photon from its frequency or wavelength
22.1
describe the photoelectric effect
22.1
understand the terms stopping voltage and critical frequency
22.1
explain the features of the photoelectric effect in terms of photons
22.1
understand why the features of the photoelectric effect are not compatible with light as a wave
22.1
calculate the wavelength shift in Compton scattering
22.1
describe the de Broglie hypothesis
22.2
calculate the de Broglie wavelength
22.2
describe an experiment that supports the wavelike characteristics of an electron
22.2
REFLECTION
Can you describe light in terms of photons? Can you explain the main features of the photoelectric effect? Do you understand the role of frequency and of intensity in the photoelectric effect? Do you understand why the Compton effect is significant? Can you apply the Compton formula? How would you describe the concept of matter waves? Can you provide the experimental evidence for matter waves?
EXAM-STYLE QUESTIONS
You can find questions in the style of IB exams in the digital coursebook.