Light

 

LIGHT 

light is an electromagnetic field in the electromagnetic field that is visible to the human eye. [1] Visual light is generally defined as 400-700 nm, or 4.00 × 10−7 to 7.00 × 10, 7 m, between infrared (long wavelengths) and ultraviolet (with short wavelengs) . [2] [3] This wavelength means a frequency range of about 430-750 terahertz (THz).

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• A triangular prism that disperses a ray of white light. Long (red) wavelengths and short wavelengths (blue) are separated.
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• Sunlight inside the Rocca ill'Abissu mine in Fondachelli-Fantina, Sicily

• The main source of light on Earth is the Sun. Sunlight gives energy to green plants to produce sugar, especially in the form of starch, which releases energy from digestive elements. This process of photosynthesis supplies almost all of the energy used by living things. Historically, another important source of human light has been fire, from ancient civilizations to modern kerosene lamps. With the design of electric lamps and power systems, electric lighting effectively transforms the light of a fire. Some species produce their own light, a process called bioluminescence. For example, flies use light to find mates and vampire squids use it to hide prey.

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• The main features of visible light, direct orientation, frequency or wavelength spectrum and separation, while its velocity in the vacuum, 299 792 458 m / s, are one of the basic natural features. Visual light, like all other forms of electromagnetic radiation (EMR), is obtained by trying to travel at this speed in a vacuum. [4]

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• In physics, the term light sometimes refers to the electromagnetic radiation of any wavelength, whether visible or not. [5] [6] In this sense, gamma rays, X-rays, microwaves, and radio waves are also easy. As with all types of EM rays, visible light varies as waves. However, the energy provided by the waves is applied to the same areas as the absorbing particles. The acid energy of EM waves is called photon and represents the quanta of light. When a wave of light is converted and taken as a photon, the force of the wave suddenly falls into one place and this is where the photon "arrives." This is what is called the collapse of the wave function. This wave-like light is also known as wave-particle duality. The study of light, known as optics.