Is it A?
If you want I can upload solution of this paper
Please it will be really helpful
@arush_kumar_singh @Supreeta_Sen @Chirag_Hegde
How to do these in exam?
Last one ABD?
Is this some test ?they seem familiar
Wait only AB Imo
Yeah ABD. How did u do it.
They are From Neeraj Kumar I’ve seen the second one in some Allen test as well.
I'm not sure about D
For B distance between the one at the centre and the edge
And for A the one at the centre and any tetrahedral void
C nearest is a/2 I guess
Is it C for ques 1
a for question 1??
And for question 2, d is right since distance between 2 layers = height of tetrahedron =root(2 /3)s
Is it multicorrect for question 1?
I think it should be a, d
What you did for distance between ov and tv ??
Distance between ov and corner is √3a/4
So between ov and centre is √3a/4
@Chirag_Hegde @arush_kumar_singh @Sweety_Shah
Yeah. First ones AD. Please post working
Tetrahedral void's Centre is the centre of tetrahedron which is at a height h/4 from the base and 3h/4 from top(where h is the height of the tetrahedron) so here it'll be h/8 and so on
How did you get A?
Observe that in a hcp lattice the 3 spheres in the middle layer will act as base of a tetrahedron so its height from the base of hcp will be3/4 * h/2
And how exactly do you prove centre of tetrahedron is 1/4. h from the base? Is this in our notes?