Bravais Lattices

Define centred unit cell. What are the types of centred unit cells?

Draw the schematic representation of lattice points in primitive unit cells.

How many types of centred unit cells are there?

_____ unit cells have points at the corners as well as at some other positions.

The correct option for the number of body centred unit cells in all $14$ types of Bravais lattice unit cells is:

The number of lattice points in an end-centred unit cell are:

Correct relation between radius of atom and edge length in body centred cubic crystal is:

What is the difference between the number of atoms per unit cell in face centred cube and the number of atoms per unit cell in body centred cube:-

Which of the following is not a correct combination:

How many types of centred unit cells?

Define centered unit cell?

Which primitive unit cell has unequal edge lengths $(\mathrm{a}\ne \mathrm{b}\ne \mathrm{c})$ and all axial angles different from $90°$?

In a monoclinic unit cell the relation of sides and angles are respectively:
 

Choose the correct statements.

The crystal system for which $\mathrm{a}\ne \mathrm{b}\ne \mathrm{c}$ and $\mathrm{\alpha }=\mathrm{\beta }=\mathrm{\gamma }=90°$ is said to be:

${\mathrm{S}}_1\text{:}$ Cubic system has four possible type of unit cells.

${\mathrm{S}}_2\text{:} {\mathrm{H}}_2\mathrm{O}$ is a diamagnetic substance and it is weakly attracted in the magnetic field.

${\mathrm{S}}_3\text{:}$ Graphite is a covalent solid with van der Waals force.

Which primitive unit cell has unequal edge lengths $(a\ne b\ne c)$ and all axial angles different from $90°$?

The most unsymmetrical system is

Tetragonal crystal system has which of the following unit cell dimensions?

Example of the unit cell with crystallographic dimensions $\mathrm{a}\ne \mathrm{b}\ne \mathrm{c}, \mathrm{\alpha }=\mathrm{\gamma }=90°, \mathrm{\beta }\ne 90°$ is