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Theory

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Procedure

Simulation

Posttest

References

Contributors

Feedback

Bravais Lattices

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Beginner

Intermediate

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What is a Bravais lattice?

a: A regular arrangement of atoms in a crystal Explanation

Explanation

b: A lattice that follows the Bravais rules Explanation

Explanation

c: A repeating pattern of arrangement of atoms with all points being equivalent Explanation

Explanation

d: None of the above Explanation

Explanation

What are lattice points?

a: Points that make a lattice are called latice points Explanation

Explanation

b: Atoms that belong to a Bravais lattice Explanation

Explanation

c: Both (a) and (b) Explanation

Explanation

d: None of the above Explanation

Explanation

Which of these are Bravais lattices?

a: Square lattice Explanation

Explanation

b: Cubic lattice Explanation

Explanation

c: Rectangular lattice Explanation

Explanation

d: All of above Explanation

Explanation

With regard to primitive vectors, which of these options are true?

a: They are vectors that are perpendicular to each other Explanation

Explanation

b: They are the vectors that can be used to re-construct a Bravais lattice Explanation

Explanation

c: Bravais lattices necessarily have 3 primitve vectors Explanation

Explanation

d: All of the above Explanation

Explanation

For a cubic lattice with dimensions of 1 unit, which of these vectors can be used as primitive vectors? (Assuming that the origin is at (0,0,0))

a: [0.5,0,0],[0,0.5,0],[0,0,0.5] Explanation

Explanation

b: [1,0,0],[0,1,0],[0,0,1] Explanation

Explanation

c: [-1,0,0],[0,-1,0],[0,0,-1] Explanation

Explanation

d: Both (b) and (c) Explanation

Explanation

Which of these is a necessity for a primitive vector?

a: The magnitude of the vector needs to be equal to the minimal distance between lattice points Explanation

Explanation

b: Angle between two primitive vectors has to be less than or equal to 90 degrees Explanation

Explanation

c: Both (a) and (b) Explanation

Explanation

d: None of the above Explanation

Explanation

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