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MCQIntermediateStars & Stellar Evolution
USAAAO — 2016 First Round
Question 16
Suppose there are two main-sequence stars, A and B. Star A has a temperature of 10,000 K, while Star B has a temperature of 5,700 K. The ratio of the radii of Star A to Star B is 3 to 2. What is the difference in absolute magnitudes between the two stars (absolute magnitude of Star B minus the absolute magnitude of Star A)?
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