Foundations of Astronomy (MindTap Course List)
14th Edition
ISBN:9781337399920
Author:Michael A. Seeds, Dana Backman
Publisher:Michael A. Seeds, Dana Backman
Chapter7: Atoms And Spectra
Section: Chapter Questions
Problem 12RQ
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Question
What is absorbing power and reflecting power of a perfect black body?
Expert Solution
Step 1
The body which absorbs all the incoming lights without reflect them back is known as perfect black body. These objects look perfectly black at room temperature.
Step 2
Blackbody absorbs all the radiant energy falling on it. Therefore, blackbody has 1 absorbing power.
A good radiator is one which has a good absorbing power. So, more the absorptive power of the body, more will be its emissive power.
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