GATE XE concept:crystal-systems PYQs & Answers

Questions 1–2 of 2. Imported answers require independent review unless marked reviewed.

There is NO base-centered cubic lattice among the list of 14 Bravais lattices because of one or more of the following reasons

Your answerSelect all correct options. You can choose more than one.

It does NOT have translational symmetry

It is only compatible with the symmetry of orthorhombic crystal system

It is only compatible with the symmetry of tetragonal crystal system

It does NOT have 3-fold rotation axes along the body diagonals

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Which one of the following unit cell parameters represents a tetragonal crystal system?

Your answerChoose one option.

a = b = c ; α = β = γ ≠ 90°

a ≠ b ≠ c ; α = β = γ = 90°

a = b ≠ c ; α = β = 90°, γ = 120°

a = b ≠ c ; α = β = γ = 90°

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GATE XE concept:crystal-systems PYQs