Question

Two non-zero vectors $\vec{A}$ and $\vec{B}$ are essentially perpendicular if

• A. $\vec{A}\cdot \vec{B}=0$
• B. $\vec{A}\times \vec{B}=0$
• C. $\vec{A}+\vec{B}=0$
• D. $\vec{A}-\vec{B}=0$

Answer 1

Answer: (A)

For orthogonal vectors $\vec{A}\cdot \vec{B}=0$