Q. In a triclinic crystal system
A) $a \neq b \neq c,\ \alpha \neq \beta \neq \gamma$
B) $a = b = c,\ \alpha \neq \beta \neq \gamma$
C) $a \neq b \neq c,\ \alpha \neq \beta = \gamma$
D) $a = b \neq c,\ \alpha = \beta = \gamma$
Explanation
(a) In a triclinic crystal $a \neq b \neq c$ and $\alpha \neq \beta \neq \gamma \neq 90{^\circ}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.