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X-rays make up X-radiation, a form of electromagnetic radiation. Most X-rays have a wavelength ranging from 0.01 to 10 nano meters, corresponding to frequencies in the range 30 terahertz to 30 terahertz and energies in the range 100 es to 100 ken.
https://www.health.harvard.edu/cancer/radiation-risk-from-medical-imaging

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Wave–particle duality is the concept in quantum mechanics that every particle or quantum entity may be partly described in terms not only of particles, but also of waves. It expresses the inability of the classical concepts "particle" or "wave" to fully describe the behavior of quantum-scale objects.
https://en.wikipedia.org/wiki/Wave%E2%80%93particle_duality

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The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light or simply light.
https://en.wikipedia.org/wiki/Visible_spectrum

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Ultraviolet designates a band of the electromagnetic spectrum with wavelength from 10 NM to 400 NM, shorter than that of visible light but longer than X-rays.
https://en.wikipedia.org/wiki/Ultraviolet

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Radio waves are a type of electromagnetic radiation, as are microwaves, infrared radiation, X-rays and gamma-rays. Electromagnetic radiation is transmitted in waves or particles at different wavelengths and frequencies.
https://www.livescience.com/50399-radio-waves.html

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The picometre or picometer is a unit of length in the metric system, equal to 1×10−12 m, or one trillionth of a metre, which is the SI base unit of length
https://en.wikipedia.org/wiki/Picometre

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The photoelectric effect is the emission of electrons or other free carriers when light shines on a material. Electrons emitted in this manner can be called photo electrons.
https://en.wikipedia.org/wiki/Photoelectric_effect

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Near-infrared spectroscopy is a spectroscopic method that uses the near-infrared region of the electromagnetic spectrum.
https://en.wikipedia.org/wiki/Near-infrared_spectroscopy

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Microwaves are a form of electromagnetic radiation with wavelengths ranging from about one meter to one millimeter; with frequencies between 300 MHz and 300 GHz.
https://en.wikipedia.org/wiki/Microwave

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sometimes called infrared light, is electromagnetic radiation with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye.
https://en.wikipedia.org/wiki/Infrared

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A gamma ray or gamma radiation, is a penetrating electromagnetic radiation arising from the radioactive decay of atomic nuclei. It consists of the shortest wavelength electromagnetic waves and so imparts the highest photon energy.
https://en.wikipedia.org/wiki/Gamma_ray

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The electromagnetic spectrum is the range of frequencies of electromagnetic radiation and their respective wavelengths and photon energies.
https://en.wikipedia.org/wiki/Electromagnetic_spectrum

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Far infrared is a region in the infrared spectrum of electromagnetic radiation. Far infrared is often defined as any radiation with a wavelength of 15 micrometers to 1 mm.
https://en.wikipedia.org/wiki/Far_infrared