Exam-style question
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Stefan luminosity: Choose the link between luminosity, radius and surface temperature. This tests Use Wien's law to estimate surface temperature. in Temperature and black-body radiation.
- A.Stefan luminosity answer: Luminosity rises with surface area and the fourth power of temperature.
- B.Stefan luminosity distractor: Luminosity is independent of radius.
- C.Stefan luminosity misconception: Luminosity is measured in parsecs.
- D.Stefan luminosity off-scope: Luminosity equals angular magnification.
Model answer
What a good answer should say
- The correct option is Stefan luminosity answer: Luminosity rises with surface area and the fourth power of temperature.
Explanation
Why this works
It is correct because it applies Temperature and black-body radiation evidence to Use Wien's law to estimate surface temperature.. The other options are incorrect because they swap in a different astrophysics measurement, telescope property or cosmology idea.
Common mistake
No common mistake is linked to this question yet.