College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Wien's displacement law
Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the…
Question

As noted in the chapter, the cosmic microwave background radiation fits the 
Planck equation for a blackbody at 2.7 K. (a) What is the wavelength at the maximum 
intensity of the spectrum of the background radiation? (b) What is the frequency of the 
radiation at the maximum? (c) What is the total power incident on Earth from the background radiation

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