Which type of light gives heat?

Infrared light is the type of light that gives off heat. It is part of the electromagnetic spectrum and exists just beyond the visible light spectrum. Infrared radiation can be felt as warmth on the skin. This type of light is produced by warm objects and is commonly used in various heating applications, including infrared lamps and heaters.

In contrast, visible light is primarily responsible for sight and does not produce significant heat. Ultraviolet (UV) light is closely related to visible light but is known primarily for its effects on the skin and its ability to cause sunburns rather than generating heat. X-ray light, while having high energy and penetrating abilities, does not contribute to warmth in the same way that infrared light does. Thus, infrared light is distinctly known for its thermal properties, making it the correct answer.