Flashcards - The Electromagnetic Spectrum and Electric Units

Flashcards - The Electromagnetic Spectrum and Electric Units
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fiber optic
An optical fiber is a flexible, transparent fiber made by drawing glass or plastic to a diameter slightly thicker than that of a human hair
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ampere
The ampere , often shortened to \"amp\", is the SI unit of electric current and is one of the seven SI base units
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pigments
A pigment is a material that changes the color of reflected or transmitted light as the result of wavelength-selective absorption
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color
Color or colour is the visual perceptual property corresponding in humans to the categories called red, blue, yellow, etc
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pure spectral color
A spectral color is a color that is evoked by a single wavelength of light in the visible spectrum, or by a relatively narrow band of wavelengths, also known as monochromatic light
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visible light
The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye
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microwaves
Microwaves are a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter; with frequencies between 300 MHz and 300 GHz
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electromagnetic spectrum
The electromagnetic spectrum is the collective term for all known frequencies and their linked wavelengths of the known photons
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electromagnetic spectrum
The electromagnetic spectrum is the collective term for all known frequencies and their linked wavelengths of the known photons
microwaves
Microwaves are a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter; with frequencies between 300 MHz and 300 GHz
visible light
The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye
pure spectral color
A spectral color is a color that is evoked by a single wavelength of light in the visible spectrum, or by a relatively narrow band of wavelengths, also known as monochromatic light
color
Color or colour is the visual perceptual property corresponding in humans to the categories called red, blue, yellow, etc
pigments
A pigment is a material that changes the color of reflected or transmitted light as the result of wavelength-selective absorption
ampere
The ampere , often shortened to \"amp\", is the SI unit of electric current and is one of the seven SI base units
fiber optic
An optical fiber is a flexible, transparent fiber made by drawing glass or plastic to a diameter slightly thicker than that of a human hair
reflection
Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated
opacity
Opacity is the measure of impenetrability to electromagnetic or other kinds of radiation, especially visible light
dispersion
In optics, dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency
index of refraction
In optics, the refractive index or index of refraction n of a material is a dimensionless number that describes how light propagates through that medium
Diffraction
Diffraction refers to various phenomena which occur when a wave encounters an obstacle or a slit
Interference
In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude
electrical resistance
The electrical resistance of an electrical conductor is a measure of the difficulty to pass an electric current through that conductor
angle of incidence
In geometric optics, the angle of incidence is the angle between a ray incident on a surface and the line perpendicular to the surface at the point of incidence, called the normal

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