Discussion
The wavelength of x-rays is of the order of
Answer: C
X-ray wavelengths are of the order of 1 Å (10−10 m).
X-rays span roughly 0.01 to 10 nm, and the X-rays used in diffraction typically have wavelengths of about 1 Å, comparable to the spacing of atoms in crystals, which is why crystals diffract them.
Wavelengths of 1 m and 1 kilometre belong to radio waves, and 1 cm to microwaves. Visible light, for comparison, lies between about 4,000 and 7,000 Å, thousands of times longer than X-rays.
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