Q. Number of crystal systems having only types of bravais lattices , number of crystal system having at least two interfacial angles equal and number of crystal systems having all the three edge lengths equal . Then find the value of

 2287  184 NTA AbhyasNTA Abhyas 2020The Solid State Report Error

Answer: 24

Solution:

(Tetragonal, Monoclinic)
(except triclinic all the bravislattices)
(Cubic, Rhombohedral)