A Beam of X Rays of Wavelength 0 $\degree$ the Distance Between Adjacent Crystal Planes, in Nm, Is

Multiple Choice

A beam of x rays of wavelength 0.10nm is found to diffract in second order from the face of a LiF crystal at a Bragg angle of 30 $\degree$ . The distance between adjacent crystal planes, in nm, is about:

A) 0.15
B) 0.20
C) 0.25
D) 0.30
E) 0.40