Question

The angle between the vector $2\hat{i}+4\hat{k}$ and the $Y$- axis is

• A. $0^{\circ }$
• B. ${90}^{\circ }$
• C. ${45}^{\circ }$
• D. ${180}^{\circ }$

Answer 1

The correct option is B ${90}^{\circ }$

The given vector is in $X-Z$ plane as no component of vector is along $Y$-axis. Hence this is perpendicular to $Y$- axis.