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olya-2409 [2.1K]
3 years ago
10

How many times hotter than the sun surface is the surface of a star the same size but gives off twice the amount of energy per s

econd?
Physics
1 answer:
Mila [183]3 years ago
8 0

The effective temperature of a star is relative to the fourth root of the luminosity and is contrariwise proportional to the square root of the radius. 

L = k R² T⁴ 

If the radius remains continuous, while the luminosity doubles, the temperature must increase by a factor of the fourth root of two. 

If L → 2L, then T → 1.189207115 T

So the answer is approximately 1.19 times.

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<h3><u>Answer</u>;</h3>

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