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WorksheetsLattice, Basis and Unit cell
Total questions: 16
Worksheet time: 9mins
A collection of geometrical points in 3-d space arranged in a regular periodic manner is called ________
lattice
basis
unit cell
primitive cell
In primitive cells the lattice points are ___________
only inside the cell
only at the corners
either one point inside the cell or only at the corners
neither inside the cell nor at the corners
Which of the following is not correct?
Crystalline solids are anisotropic.
Lattice + Basis = Crystal
crystals form in great heat and under pressure.
All Unit cells are Primitive cells.
what do you understand by term Lattice Parameters?
three edges of unit cell
three inter axial angles of unit cell
three edges and inter-axial angles
three Dimensional cube
Guess the type of Unit cell?
Primitive
Non Primitive
Smallest repeating unit of crystal lattice
Lattice site
Unit cell
Crystal lattice
Lattice point
Example for crystalline solid
Glass
Quartz
Plastic
Rubber
Crystalline solids are
Isotropic
Allotropic
Anisotropic
Isomorphic
Which of the following statements about lattices and unit cells is correct?
A unit cell contains a whole number of complete molecules
Lattice points are chosen to lie on atoms.
Lattice points all have identical surroundings
Unit cells are constructed by connecting adjacent lattice points to give the largest possible repeat unit.
Repeatable entity of a crystal structure is known as
Crystal
Lattice
Unit cell
Miller indices
What is a crystal?
A pure material that can’t be changed.
Material with a regular,repeating arrangement of atoms.
A foggy like material.
An amorphous solid has a definite melting point.
True
False
Which of the following is an amorphous solid?
Copper(Cu)
Quartz glass (SiO2)
Silicon carbide (SiC)
Sodium Chloride (NaCl)
Quartz crystals are colored due to (a)
The sum any two vector in the set of lattice vector is also a (a) .
The location of all the carbon atoms in graphene sheet represent lattice point.
True
False
