The size of the crystals reflect the conditions of growth, rather than the internal constitution of the crystal. NaCl crystals grown at the bottom of a beaker are squre plates whose thickness is never greater than half-their width. Thus the growth rate in either of the two horizontal orientations is twice that in the vertical direction.
The angle between between two characteristic faces of octahedra and cube of NaCl crystal are `theta_(1)`and `theta_(2)` then correct relation is
A. `theta_(1) gt theta_(2)`
B. `theta_(1) lt theta_(2)`
C. `theta_(1) = theta_(2)`
D. `theta_(1) = 2theta_(2)`