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flemingpk flemingpk
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A week ago

The Stefan-Boltzmann law says that hot objects emit energy proportional to the fourth power of their temperature. One star has a temperature of 30,000 K and another star has a temperature of 6,000 K. Compared to the cooler star, how much more energy per second will the hotter star radiate from each square metre of its surface?



5 times as much



25 times as much



625 times as much



1.3×1015 times

Textbook 
ASTRO

ASTRO


Edition: 3rd
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majudomminickmajudomminick
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A week ago
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