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4. The sun approximates an ideal blackbody radiator at a temperature of 5825K. (a) By Wien’s...

4. The sun approximates an ideal blackbody radiator at a temperature of 5825K.

(a) By Wien’s Law, what is the peak wavelength of this distribution?

(b) What is the energy of a blackbody photon at this wavelength?

(c) Is this photon in the visible band of the electromagnetic spectrum and why or why not?

(d) The Cosmic Microwave Background has a nearly perfect blackbody spectrum with a temperature of 2.73K. What is the peak blackbody wavelength?

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