The peak wavelength emitted by the Sun falls within the visible light portion of the electromagnetic spectrum, specifically in the green-yellow region.

Here's why:

* Wien's Displacement Law: This law states that the peak wavelength of radiation emitted by a blackbody is inversely proportional to its temperature. The Sun, with its surface temperature of around 5,778 Kelvin, emits radiation with a peak wavelength of approximately 500 nanometers.

* Visible Light: The visible light spectrum spans wavelengths from approximately 400 to 700 nanometers.

* Green-Yellow Region: The peak wavelength of 500 nanometers falls squarely within the green-yellow region of the visible light spectrum.

While the Sun emits radiation across the entire electromagnetic spectrum, the majority of its energy is concentrated in the visible light portion, with a peak in the green-yellow region. This is why we perceive the Sun as a bright, yellowish-white object.