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- The terms light, electromagnetic waves, and radiation all refer to the same physical phenomenon: electromagnetic energy. This energy can be described by frequency, wavelength, or energy. All three are related mathematically such that if you know one, you can calculate the other two.
science.nasa.gov/ems/02_anatomy
Apr 8, 2008 · Visible light — which, like all electromagnetic radiation, travels in waves — includes wavelengths between about 380 nanometers (violet) and about 740 nanometers (red). Radiation with wavelengths shorter than visible light includes gamma rays, X-rays and ultraviolet light.
The same kind of thing is true of light. Visible light has a wavelength from about 400-700nm, far smaller than anything you can discern unaided. This corresponds to frequencies of about 4-7*10^14 Hz, far faster than anything you can perceive.
Oct 19, 2015 · All electromagnetic radiation is in the form of photons and could then therefore said to be light. Any body that possesses heat can produce radiation. Depending on the electromagnetic processes that are ongoing in that body will determine how that radiation is released.
Electromagnetic radiation is commonly referred to as "light", EM, EMR, or electromagnetic waves. [ 2 ] The position of an electromagnetic wave within the electromagnetic spectrum can be characterized by either its frequency of oscillation or its wavelength.
Familiar radiations are heat, light, radio waves, and microwaves. Ionizing radiation is a very high-energy form of electromagnetic radiation. Wavelength – Distance covered by one complete cycle of the electromagnetic wave.
Feb 18, 2010 · Radio, microwaves, UV, visible light and gamma rays have completely different effects, but they're all exactly the same kind of thing: electromagnetic radiation (EMR). They're just waves of energy travelling through space — or through things.
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Aug 10, 2016 · The terms light, electromagnetic waves, and radiation all refer to the same physical phenomenon: electromagnetic energy. This energy can be described by frequency, wavelength, or energy. All three are related mathematically such that if you know one, you can calculate the other two.
