Gurmeet Singh posted an Question
October 01, 2020 • 20:42 pm 30 points
  • IIT JAM
  • Geology (GG)

Sir, is the ans a option correct?

The Isometric system is characterised by 3 axes of 4 fold symme try 4 axes of 3 fold symmetry 2 axes of 4 fold symmetny 5 axes of 5 fold symme try

2 Answer(s) Answer Now
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    Sajan sarthak Best Answer

    Isometric system is characterised by 4 axes of 3 fold symmetry

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    Rahul kumar best-answer

    Option (a) is incorrect because you don't get 3 axes of 4 fold symmetry in all point groups of isometric system. For example point group 23 belongs to isometric system but doesn't have any 4 fold symmetry axis. 4 axes of 3 fold symmetry is diagnostic of isometric system and present in all point groups of isometric system.

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