Question

4. The characteristic of axial angles of tetragonal system is
a) a = B = y +90
b) a = B = 90°, y # 90°
c) + B + y = 90 d) a = B = y = 90°​

Answer 1

Answer:

option d is correct

Explanation:

alpha=beta=gama=90°

Answer 2

d) For tetragonal system the axial angles: $\alpha =\beta =\gamma = 90^{o}$

Explanation:

• In crystal lattices, the lattice points aee joined together to form a primitive cell.
• There are 7 crystal lattices, among them one is tetragonal crystal lattice.
• In it the axes are all perpendicular to each other.
• The length of two of the axis are equal and the third one is different.
• So, we can say $\alpha =\beta =\gamma = 90^{o}$ and a=b≠c.
• Therefore, option (d) is correct.