Q. The axial angles in triclinic crystal system are
A) $\alpha = \beta = \gamma = 90{^\circ}$
B) $\alpha = \gamma = 90{^\circ},\ \beta \neq 90{^\circ}$
C) $\alpha \neq \beta \neq \gamma \neq 90{^\circ}$
D) $\alpha = \beta = \gamma \neq 90{^\circ}$
Explanation
(c)
The axial angles in triclinic crystal system are different and none is perpendicular to any of the others $i.e.,$ $\alpha \neq \beta \neq \gamma \neq 90{^\circ}.$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.