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The wavelength of X-rays is in the range

Asked in GUJCET 2014 · Ranges, production and detection

Answer: (1) 0.001 nm to 1 nm

Step-by-step solution

Idea: fix the band by its wavelength in metres, then compare with its neighbours in the spectrum.

X-rays lie between the ultraviolet and the gamma rays, from roughly 10⁻¹² m to 10⁻⁹ m.

Since 1 nm = 10⁻⁹ m, that is 0.001 nm to 1 nm.

The short (hard) end near 0.001 nm overlaps the gamma rays; the long (soft) end near 1 nm borders the far ultraviolet.

So the range is 0.001 nm to 1 nm.

Why the other options are wrong

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