X-rays are a form of electromagnetic radiation with a wavelength in the range of 10 to 0.1 nanometers, corresponding to frequencies in the range 30 to 3000 PHz.
See also:
X-rays are primarily used for diagnostic medical imaging and crystallography.
X-rays are a form of ionizing radiation and as such can be dangerous.
The image formed by x-rays on a sensitive film is referred to as a radiograph..
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