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What approximately is the power of the thermal radiation?

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

Chapter24: Electromagnetic Waves

Section: Chapter Questions

Problem 29P

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Assume that the normal human skin temperature is 308 K and that we emit thermal radiations. To estimate the surface area, consider human body as a cylinder with a height of 2m and a diameter of 0.5 m. What approximately is the power of the thermal radiation? (Note that this is not the net power because we also receiver the energy of thermal radiation of air at room temperature.

0.3W 50W 0.004 W 2000 W

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