jee
Out of many possible close packed structures, hexagonal closed packed(HCP) is one of the highly efficient packings. Which is not correct about a HCP structure? ( \( h = \) distance between alternate layers)
A. Four layers of THV are present at \( h / 8,3 h / 8,5 h / 8 \) and \( 7 h / 8 \).
B. Two layers of OHV are present at \( h / 4,5 h / 4 \).
C. All \( 6 OHV \) are completely present within the a unit of HCP structure.
D. 6 THV are completely inside while 24 are shared with others in vicinity.
