Question

the order of null matrix is a) 0 b) any order​

Answer 1

Any order cause even if u take a complex order even then you'll have 0 as ur answer

Answer 2

In each element of an m×n matrix be 0,the null element of F,the matrix is said to be the null matrix or the zero matrix of order m×n and it is denoted by Om×n. It is also denoted by O, when no confusion regarding its order arises . ...(564109) is a null matrix of order 2×3