Question

Tetragonal crystal system has the following unit cell dimensions.

• A. $a = b = c$ and $\alpha = \beta = \gamma = 90^{o}$
• B. $a = b \neq c$ and $\alpha = \beta = \gamma = 90^{o}$
• C. $a \neq b \neq c$ and $\alpha = \beta = \gamma = 90^{o}$
• D. $a = b \neq c$ and $\alpha = \beta = 90^{o},\gamma = 120^{o}$

Answer 1

Answer: (B)

$a = b \neq c$ and $\alpha = \beta = \gamma = 90^{o}$

Answer 2

Tetragonal system has the unit cell dimension

$a = b \neq c,\alpha = \beta = \gamma = 90{^\circ}$.