NIELIT 2017 DEC Scientist B - Section B: 60

Question

Consider two matrices $M_1$ and $M_2$ with $M_1^*M_2=0$ and $M_1$ is non singular. Then which of the following is true?

• A. $M_2$ is non singular
• B. $M_2$ is null matrix
• C. $M_2$ is the identity matrix
• D. $M_2$ is transpose of $M_1$

Answer 1

answer option (B)

when we multiply any matrix with null matrix we always get null matrix