Question: b ) Show that if the plane ( hk 0 ) of HCP crystal is orthogonal to the vector vec ( r ) : vec

b) Show that if the plane (hk0) of HCP crystal is orthogonal to the vector vec(r) :
vec(r)=hvec(a)1+kvec(a)2+ivec(a)3
if h+k+i=0.(10pt)
b ) Show that if the plane ( hk 0 ) of HCP

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