Exam-style question
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What is the primary factor that links a star's temperature to its radiation output?.
- A.Mass of the star.
- B.Distance from Earth.
- C.Surface area and temperature.
- D.Chemical composition.
Model answer
What a good answer should say
- Surface area and temperature.
Explanation
Why this works
The radiation output of a star is linked to both its surface area and temperature, as described by the Stefan-Boltzmann law, which combines these factors to determine total energy radiated.
Common mistake
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