Q: In characteristics of cubic crystal, the planes and directions having the same indices are always at the angle of
(a)15° to one another
(b)30° to one another
(c)45° to one another
(d)90° to one another
Correct Answer: (d)
The correct answer is (c): 45° to one another. Subject: Geology & Geophysics | Sub-topic: General Geology Note: This answer was determined through AI-based research. Verify against the official answer key when available.