For a cubic crystal structure which one of the following relations indicating the cell characterstic is correct?

Options

A. `anebnec` and `alpha ne beta` and `gamma ne 90^(@)`
B. `anebnec` and `alpha=beta=gamma=90^(@)`
C. `a=b=c` and `alpha ne beta ne gamma = 90^(@)`
D. `a=b=c` and `alpha ne beta=beta=90^(@)`

Answer

D

Explanation

In cubic crystals, the crystal axes are perpendicular to one another `(alpha=beta=gamma=90^(@))` and the repetitive interval is the same along the three axes `(a=b=c)`.