Potassium iodide has an interplanar spacing of d _ 0.296
Chapter 27, Problem 27.43(choose chapter or problem)
Potassium iodide has an interplanar spacing of d _ 0.296 nm. A monochromatic x-ray beam shows a fi rstorder diffraction maximum when the grazing angle is 7.6. Calculate the x-ray wavelength.
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