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If a Sunspot Appears One-Quarter as Bright as the Surrounding

Question 22

Multiple Choice

If a sunspot appears one-quarter as bright as the surrounding photosphere, and the average temperature of the photosphere is 5800 K, what is the temperature of the gas in this sunspot?


A) 3625 K
B) 4100 K
C) 4500 K
D) 5200 K
E) 5500 K

Correct Answer:

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