Two stars, A and B, have the same emissivity, but the radii and surface temperatures are different with RA = 2 RB, and TA = 0.5 TB. Assuming the temperature of space to be negligible, which star radiates the most energy per unit time?

a. Star A
b. Star B
c. Both radiate the same amount of energy per unit time.
d. More information is needed in order to make a determination.


B

Physics & Space Science

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