If two vectors P = i + 2mj + mk and Q = 4i - 2j + mk are perpendi… | JEE Main 2023 Mathematics PYQ

MCQEasyJEE Main 2023 · 24 January, Shift 2Dot Product

If two vectors $\mathbf{P} = \hat{i} + 2m\hat{j} + m\hat{k}$ and $\mathbf{Q} = 4\hat{i} - 2\hat{j} + m\hat{k}$ are perpendicular to each other, then the value of $m$ will be:

A
$1$
B
$-1$
C
$-3$
D
$2$

Answer & step-by-step solution

Practice more Dot Product questions

Get unlimited AI-adaptive practice, mastery tracking, and an AI tutor that explains every step - free to start.

Start free trial More on Dot Product

Answer & step-by-step solution

Practice more Dot Product questions

Related questions