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

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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