Final answer:
The Sun's maximum energy is radiated at approximately 0.5 micrometers, close to visible light's spectrum, indicative of a surface temperature of about 6000 K.
Step-by-step explanation:
The Sun's maximum energy is radiated at a wavelength of approximately 500 nanometers (0.5 micrometers), which corresponds to the peak of the solar emission spectrum. This peak wavelength is located within the visible part of the electromagnetic spectrum. According to Wien's law, this indicates the Sun's surface temperature is about 6000 K. The sunlight reaching the Earth consists of approximately half infrared energy and the rest mostly in the visible spectrum, with a smaller amount in the ultraviolet range. The Sun, emitting radiation like a nearly perfect blackbody (with an emissivity value, e = 1), is considered a primary source of electromagnetic radiation or simply light for our planet.