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?

Question

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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Electromagnetic Waves

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