Question

The Sun is a 6,000-K blackbody. At what characteristic wavelength does it radiate?

Answer 1

The wavelength of maximum energy radiated by a body is given by Wien's displacement law: Lambda = A / T. A is a constant, so as temperature increase the wavelength decreases. The sun, T=6000°K, emits primarily in the visible range, while the earth, T=300°K, emits primarily in the thermal IR range.

Step-by-step explanation: