[" In a tetragonal crystal "],[[" (1) "a=b=c,alpha=beta=90^(@)!=gamma," (2) "alpha=beta=gamma=90^(@),a=b],[" (3) "alpha=beta=gamma=90^(@),a!=b!=c," (4) "alpha=beta=90^(@),gamma=120^(@)]]

Identify the following unit cell: (1) a=bnec, alpha=beta=gamma=90^(@) (2) anebnec, alpha=beta=gamma=90^(@)

Crystal systems with alpha=beta=gamma=90^(@) -

For a crystal system, a=b=c, alpha=beta=gamma ne 90 , the system is

The unit cell with parameters alpha=beta=gamma=90^(@) and a=b!=c is :-

If alpha,beta,gamma are such that alpha+beta+gamma=2alpha^(2)+beta^(2)+gamma^(2)=6,alpha^(3)+beta^(3)+gamma^(3)=8, then alpha^(4)+beta^(4)+gamma^(4)

Match the type of crystal system given in List I with its description given in List II. {:("List I","List II"),("P. Monoclinic",1. a!= b != c " , " alpha != beta != gamma != 90^@),("Q. Tetragonal ", 2.a!= b != c" , " alpha = beta = gamma = 90^@),("R. Triclinic", 3.a!= b != c" , " alpha = gamma = 90^@ " , " beta != 90^@),("S. Rhombic", 4.a = b != c " , " alpha = beta = gamma = 90^@):}

if a=b ne c and alpha=beta=gamma=90^(@) , the crystal system is

if a=b ne c and alpha=beta=gamma=90^(@) , the crystal system is

if a=b ne c and alpha=beta=gamma=90^(@) , the crystal system is

If A=[alpha beta gamma-alpha] is such that A^(2)=I, then 1+alpha^(2)+beta gamma=0( b) 1-alpha^(2)+beta gamma=0 (c) 1-alpha^(2)-beta gamma=0 (d) 1+alpha^(2)-beta gamma=0