Light is electromagnetic radiation with a wavelength that is visible to the eye (visible light) or, in a technical or scientific context, electromagnetic radiation of any wavelength..
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Electromagnetic radiation Electromagnetic radiation is a propagating wave in space with electric and magnetic components. These components oscillate at right angles to each ... >
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Optics Optics is a branch of physics that describes the behavior and properties of light and the interaction of light with matter. The field of optics ... >
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Electrical phenomena Electrical phenomena are commonplace and unusual events that can be observed which illuminate the principles of the physics of electricity and are ... >
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Electromagnetic spectrum The electromagnetic spectrum is the range of all possible electromagnetic radiation. Above infrared in frequency comes visible light. This is the ... >
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Wave-particle duality In physics and chemistry, wave-particle duality holds that light and matter exhibit properties of both waves and of particles. A central concept of ... >
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Electromagnetism Electromagnetism is the physics of the electromagnetic field: a field, encompassing all of space, which exerts a force on those particles that ... >
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Radiant energy Radiant energy is the energy of electromagnetic waves. The term is most commonly used in the fields of radiometry, solar energy, heating and ... >
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Photoelectric effect The photoelectric effect is the emission of electrons from matter upon the absorption of electromagnetic radiation, such as ultraviolet radiation or ... >
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Infrared Infrared (IR) radiation is electromagnetic radiation of a wavelength longer than that of visible light, but shorter than that of microwave radiation. ... >
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Radiography Radiography is the creation of images by exposing a photographic film or other image receptor to X-rays. Since X-rays penetrate solid objects, but ... >
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