AB is an ionic solid. If the ratio of ionic radii of A+and B– is 0.52. What is the coordination number of B–?
6
3
2
8
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For a crystal, the angle of diffraction (2θ) is 90° and the second order line has a d value of 2.28Å. The wavelength (in Å) of X–rays usedfor Bragg's diffraction is