A lightbulb manufacturer makes bulbs with different "color temperatures," meaning that the spectrum of light they emit is similar to a blackbody with that temperature. What would be the difference in appearance of the light from bulbs with color temperatures of 2,000 K and 4,000 K?
The bulb with the 2,000-K color temperature would have its peak output in the ---Select--- radio wave microwave infrared ultraviolet x-ray gamma ray band, so more of its visible output would be toward the ---Select--- violet red end of the spectrum than that of the 4,000-K bulb, so it would look a bit more