In a face-centred cubic $(FCC)$ unit cell,the edge length $(a)$ in terms of atomic radius $(r)$ is:
- A$\frac{4}{\sqrt{3}} r$
- B$\frac{4}{\sqrt{2}} r$
- C$2r$
- D$\frac{\sqrt{3}}{2} r$
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Similar Questions
How many lattice points are there in one unit cell of each of the following lattices?
$(i)$ Face-centred cubic
$(ii)$ Face-centred tetragonal
$(iii)$ Body-centred
$(i)$ Face-centred cubic
$(ii)$ Face-centred tetragonal
$(iii)$ Body-centred
Easy
View SolutionThe parameters of the unit cell of a substance are $a=2.5, b=3.0, c=4.0, \alpha=90^{\circ}, \beta=120^{\circ}, \gamma=90^{\circ}$. The crystal system of the substance is :
$A$ match box exhibits
Easy
View SolutionThe total number of body-centred lattices possible among the $14$ Bravais lattices is:
What is the total number of different types of unit cells in a tetragonal crystal system?
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