# GATE MT 2015 Q24. In a conventional unit cell of a crystal, a=b ≠ c and α=β=γ=90°. This crystal belongs to which of the following systems?

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Askmemetallurgy Official

Asked: 2020-04-01T04:40:14+05:30
2020-04-01T04:40:14+05:30In: Physical Metallurgy & Heat treatment

0%(A) Cubic
84.62%(B) Tetragonal ( 11 voters )
15.38%(C) Orthorhombic ( 2 voters )
0%(D) Triclinic

Based On 13 Votes

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Correct answer is option B. Tetragonal crystal lattices result from stretching a cubic lattice along one of its lattice vectors, so that the cube becomes a rectangular prism with a square base (a by a) and height (c, which is different from a).

Correct answer is option B.

Tetragonal crystal lattices result from stretching a cubic lattice along one of its lattice vectors, so that the cube becomes a rectangular prism with a square base (

See lessabya) and height (c, which is different froma).