A Beam of X Rays of Wavelength 0

Multiple Choice

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

A) 0.10 nm
B) 0.20 nm
C) 0.25 nm
D) 0.30 nm
E) 0.40 nm