The Lattice Spacing of the Principal Bragg Planes in Sodium

Multiple Choice

The lattice spacing of the principal Bragg planes in sodium chloride is 0.282 nm.For what wavelength of x-rays will the first order reflected beam diffract at 55° with respect to the normal to the crystal planes?

A) 0.323 nm
B) 0.530 nm
C) 0.662 nm
D) 0.150 nm
E) 0.462 nm