Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 20, Problem 49P
To determine
To Estimate: The effective temperature of sun.
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he rate at which radiant energy from the sun reaches the earth's upper atmosphere is about 1.50kW/m2. the distance from the earth to the sun is 1.50*1011 m, and the radius of the sun is 6.96x108 m. if the sun radiates as an ideal black body (e=1), what is the temperature of its surface?
The radiation energy (intensity of the radiation) reaching Earth from the sun at the top of the atmosphere is 1.36×103??2⁄, which is called the solar constant. Assuming that Earth absorb the total power coming from the Sun to the Earth and radiates with the emissivity of 0.8 (not ideal black body) at a uniform temperaturearound the Earth, what would the equilibrium temperature of Earth be?
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Chapter 20 Solutions
Physics for Scientists and Engineers
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