Non-visible light refers to electromagnetic radiation that lies outside the range of wavelengths detectable by the human eye. Here are some examples of non-visible light:
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Ultraviolet (UV) Light: This is found just beyond the visible spectrum, with wavelengths ranging from about 10 nm to 400 nm. UV light is responsible for causing sunburn and is used in sterilization and disinfection.
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Infrared (IR) Light: Located just beyond the visible spectrum on the red side, infrared light has wavelengths ranging from about 700 nm to 1 mm. It is commonly associated with heat and is used in applications like remote controls, thermal imaging, and night vision devices.
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Microwaves: These have wavelengths ranging from about 1 mm to 30 cm. Microwaves are widely used in communication technologies and cooking, such as in microwave ovens.
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Radio Waves: With wavelengths ranging from about 1 mm to thousands of kilometers, radio waves are used for various forms of communication, including AM and FM radio, television broadcasts, and cell phone signals.
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X-rays: These have shorter wavelengths (around 0.01 nm to 10 nm) and are commonly used in medical imaging to view the inside of the body.
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Gamma Rays: With the shortest wavelengths (less than 0.01 nm), gamma rays are produced by radioactive materials and during nuclear reactions. They are used in cancer treatment and certain types of imaging.
Each of these types of non-visible light has unique properties and applications in science, medicine, and technology.
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