Cambridge AS & A Level Physics
25.2Stellar radii
Stellar radii in Cambridge AS & A Level Physics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic22 practice questions1 lesson
Learning objectives
What the syllabus expects you to be able to do.
- 25.2.1Use Wien's displacement law to estimate a star's peak surface temperature.
- 25.2.2Use the Stefan-Boltzmann law.
- 25.2.3Combine Wien's law and the Stefan-Boltzmann law to estimate a star's radius.
Lessons
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Wien's law, the Stefan-Boltzmann law and the sizes of stars
40 min
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Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
Turn Stellar radii into a strength.
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