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Most medical x-rays have an energy range between $5-150\text{ keV}$.

In the diagram below, $d$ is the slit spacing for a double slit (illustrated) or diffraction grating and $L$ is the distance to the screen.

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If you are given $100\text{ kEv}$ x-rays, which of the following slit spacing would most likely result in a measurable interference pattern in a student laboratory setting?


$0.125\text{ centimeters}$


$0.00125\text{ centimeters}$


$0.0125\text{ micrometers}$


$0.125\text{ nanometers}$

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