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One Star Has a Surface Temperature of 6000 K and Another

Question 31

Multiple Choice

One star has a surface temperature of 6000 K and another has a surface temperature of 7000 K. If the two stars have the same absolute luminosity, and if the radius of the 6000 K star is R6 and the radius of the 7000 K star is R7, what is the ratio R6/ R7?


A) 0.7
B) 1.2
C) 1.4
D) 1.6
E) 1.9

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