Unit3Assignment2 - is a form of radiation which is not...

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Marcus Moore 4.9.16 SC1130 – Assign 2 [Electromagnetic Spectrum] Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Radio waves have frequencies from 3 THz to as low as 3 kHz, and corresponding wavelengths ranging from 100 micrometers (0.0039 in) to 100 kilometers (62 mi). They are also given off by stars, sparks and lightning, which is why you hear interference on your radio in a thunderstorm.
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Microwave radiation has lower frequencies and longer wavelengths than visible light. Microwaves with certain wavelengths are absorbed by water molecules and can be used for cooking. Infrared (IR) light is the part of the EM spectrum that people encounter most in everyday life, although much of it goes unnoticed. It is invisible to human eyes, but people can feel it as heat. Ultraviolet light
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Unformatted text preview: is a form of radiation which is not visible to the human eye. It's in an invisible part of the "electromagnetic spectrum". Radiated energy, or radiation, is given oF by many objects: a light bulb, a crackling ±re, and stars are some examples of objects which emit radiation. X-rays are electromagnetic waves with wavelengths in the range of 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3×1016 Hz to 3×1019 Hz) and energies in the range 100 eV to 100 Kev . Gamma-rays have the smallest wavelengths and the most energy of any other wave in the electromagnetic spectrum. These waves are generated by radioactive atoms and in nuclear explosions. They can kill living cells, they are used to kill cancer cells without having to resort to difficult surgery. This is called Radiotherapy....
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