The surface temperature of the sun is approximately 5,800 K. However, stars can be much hotter. WR 102 is one of the hottest known stars in the universe, with a surface temperature of approximately 200,000 K. WR 102 is also small and dense, with a radius that is approximately 0.58 that of the sun. What is the ratio between the radiated power of the sun to that of WR 102, Psun/PWR 102? Assume the emissivity, e, is the same for both stars, and that they are spherical.

The surface temperature of the sun is approximately 5,800 K. However, stars can be much hotter. WR 102 is one of the hottest known stars in the universe, with a surface temperature of approximately 200,000 K. WR 102 is also small and dense, with a radius that is approximately 0.58 that of the sun. What is the ratio between the radiated power of the sun to that of WR 102, Psun/PWR 102? Assume the emissivity, e, is the same for both stars, and that they are spherical.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter31: Particle Physics

Section: Chapter Questions

Problem 49P

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