College of Massage Therapists of British Columbia (CMTBC) Practice Exam

What is the wavelength range for Far-Infrared light?

1. 1,000 - 5,000 nm

2. 500 - 1,000 nm

3. 1,500 - 12,500 nm

4. 100 - 1,500 nm

The correct answer is: 1,500 - 12,500 nm

The wavelength range for Far-Infrared light is indeed 1,500 to 12,500 nanometers (nm). This range is part of the broader infrared spectrum, which sits beyond the visible light spectrum that humans can perceive. Far-Infrared light has longer wavelengths than those of near-infrared light and has unique properties, including its ability to penetrate deeper into biological tissues and produce heat. This makes it significant in various therapeutic contexts, such as in therapeutic modalities used in massage therapy and other forms of physical therapy. Understanding this range is crucial for practitioners who utilize infrared technologies, as it helps to inform the appropriate application for treatment and the expected physiological effects on the body. The other provided ranges fall outside the definition of Far-Infrared light and represent different parts of the electromagnetic spectrum, such as near-infrared or visible light, which do not share the same applications or therapeutic properties. The Far-Infrared range is specifically selected due to its effectiveness in promoting healing and comfort in therapeutic settings.