Which of the following axis system is being satisfied by cubic crystal system?

Which of the following axis system is being satisfied by cubic crystal system?

Right Answer is:

a = b = c, α = β = γ = 90°

SOLUTION

The simplest and most symmetric crystal is the cubic (or isometric) system. This has the symmetry of cube, i.e., all the three axes are mutually perpendicular and of equal length (a = b = c, α = β = γ = 90°). Common cubic crystals are diamond, gold, spinel, etc.

a = b = c, α = β = γ = 90° axis system is being satisfied by cubic crystal system.

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