Visible Light
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Johnbarrow
John from Bartow
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Optics
Visible Light
Visible light is a narrow electromagnetic battleground shaping life and technology
34 hours ago
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Why is visible light confined to a narrow range of wavelengths between ultraviolet and infrared radiation?
Because visible light has the highest energy in the electromagnetic spectrum.
Because the human eye is sensitive only to wavelengths that balance energy and safety, making visible light detectable and biologically useful.
Because visible light includes all electromagnetic radiation that can be detected by any instrument.
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SteveO1
Technology and cars
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Visible Light
Visible light is just a tiny slice of the electromagnetic spectrum that our eyes can detect
6 Feb 2026
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What defines the range of visible light in the electromagnetic spectrum?
Visible light includes all electromagnetic waves with wavelengths longer than 700 nanometres.
Its wavelengths lie between approximately 400 and 700 nanometres, corresponding to frequencies of 750 to 420 terahertz.
Visible light is the only type of electromagnetic radiation that exists.
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steve121123
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Visible Light
Visible light is the only electromagnetic radiation humans can see, spanning just a tiny slice of the spectrum
6 Feb 2026
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Why is visible light the only part of the electromagnetic spectrum that humans can see?
Because visible light has the highest energy among all electromagnetic waves
Because its wavelengths correspond to the sensitivity range of human photoreceptors in the eye
Because visible light is the only electromagnetic radiation that exists
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