How do the spacings of the three planes (100), (101) and (111) of simple cubic lattice vary?

How do the spacings of the three planes (100), (101) and (111) of simp

1.	How do the spacings of the three planes (100), (101) and (111) of simple cubic lattice vary?
Answer» SOLUTION :`1 : 1// SQRT2 : 1 // SQRT3`