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  1. There are radio waves, microwaves, infrared light, visible light, ultraviolet light, X-rays and gamma rays, all of which form what is known as the 'electromagnetic spectrum'. The electromagnetic spectrum is subdivided into seven regions according to wavelength.

  2. en.wikipedia.org › wiki › Gamma_rayGamma ray - Wikipedia

    A sample of gamma ray-emitting material that is used for irradiating or imaging is known as a gamma source. It is also called a radioactive source, isotope source, or radiation source, though these more general terms also apply to alpha and beta-emitting devices.

  3. Gamma-ray sources refer to regions in space emitting high-energy gamma radiation, often discovered through satellite missions. Some of these sources remain unidentified and can be categorized based on their location, spectral properties, and association with known objects or phenomena in the Milky Way.

  4. en.wikipedia.org › wiki › LightLight - Wikipedia

    In physics, the term "light" may refer more broadly to electromagnetic radiation of any wavelength, whether visible or not. [4][5] In this sense, gamma rays, X-rays, microwaves and radio waves are also light. The primary properties of light are intensity, propagation direction, frequency or wavelength spectrum, and polarization.

  5. May 14, 2024 · Gamma rays are light (photons), not particles. They have the highest frequency and shortest wavelength on the electromagnetic spectrum. Mostly, gamma radiation results from nuclear reactions. What Are Gamma Rays?

  6. Sep 30, 2022 · On one end of the electromagnetic spectrum are radio waves, which have wavelengths billions of times longer than those of visible light. On the other end of the spectrum are gamma rays, with wavelengths billions of times smaller than those of visible light.

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  8. Sources of Light. The visible spectrum of light is just a small part of the electromagnetic spectrum which extends from radio waves (long waves, kilometers in extent) to gamma rays (10-3 meters down to 10-15 meters, the size of the nucleus). The more familiar x-rays have wavelengths around 10-10 meter.

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