Question

If $A$ is a null matrix then

• A. $\text{Rank}(A) = 1$.
• B. $\text{Rank}(A) = 0$.
• C. $\text{Rank}(A) = 2$.
• D. $\text{Rank}(A) = 3$.

Hint:

$\text{Rank}(A) = 0 \iff A = O$ (Zero Matrix). For any non-zero matrix $A_{m \times n}$, $1 \leq \text{Rank}(A) \leq \min(m, n)$.

Answer 1

The Correct Option is B