Assertion : A particle present at the corner of the face centred unit cell has 1/8th of its contribution
of the unit cell.
Reason : In any space lattice, the corner of the unit cell is always shared by the eight unit
cells.
(1) A
(3) C
(4) D
(2) B
Answers
Answered by
8
answer is (3) C
in a face-centered unit cells particles are present at the edges and the faces of the cubic structure. The atoms at the eight corners have a one-eighth contribution to the unit cell. And the atoms at the face are shared equally between two unit cells in a lattice. So their contribution is half an atom.
imsuv7:
it's a assertion reason question
A - bot A&R are correct & R is correct explanation of A , B stand for both A&R are correct but R is not correct explanation of A , C - A is correct R is False , D - Both A& R are false
I also reached on same conclusion but ans given is "C" & it is not wrong
Similar questions