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The first order reflections of a beam of X – rays of wavelength of 1.54A$^{\large\circ}$ from the (100) face of a crystal of the simple cubic type occurs at an angle 11.29$^{\large\circ}$. Calculate the length of the unit cell.

1 Answer

$3.93\times 10^{-8}cm$
Hence (A) is the correct answer.
answered Jun 2, 2014 by sreemathi.v