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USAAAO — 2022 First Round

Question 18

Assume that the smaller star in the binary star system shown below is brighter than the larger star. What is the ratio of the radius of the smaller star to the radius of the larger star?

Figure for USAAAO 2022 question 18

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Source

USAAAO 2022 First Round. Question text, choices, and answer were transcribed from the official USAAAO exam and solutions PDFs.