How many holes are present at h/4 distance in HCP unit cell structure?
(here h = height of unit cell)
(a) 3 (b) 4 (c) 2 (d) 1
The ans. is given as option a. Please reply soon with explanation.
I also have this doubt. If you get to know the explanation, please tell me.
I am getting 3 as ans
Now you have no other option other than imagining.
6atoms at base,3 on top of them in a unit cell.But in the layer of these three there are other atoms present even though we don't count them in unit cell.Ifyou form the whole of this layer,you get three holes in a unit cell.