Question

A beam of neutron was diffracted by a crystal.  The wavelength of the neutrons is 1.562 Angstroms.  A set of atomic layers in the crystal was separated from each other by a distance of 2.489 Angstroms.  The Bragg peak’s observed angle will be at:

(a)  23.18^o                   (b)  13.65^o                   (c)  15.69^o                   (d)  36.57^o

Answer 1

> >> Gave From Bragg's 2d sino any Where . d -> Seperation of atomie layers = 2:4898 length of neutrons 1.562 for first orden diffraction n=1 2d sino => Sino Tri 1,562 2x 2.489 → ou Sin' (0.314) - 18.3° - > 0.314 다. 0 - 18:30