$A$ vector in the direction of $v = 2\hat{i} + 3\hat{j} + \hat{k}$ with magnitude $\sqrt{7}$ is

  • A
    $\frac{2}{\sqrt{3}}\hat{i} + \frac{3}{\sqrt{3}}\hat{j} + \frac{1}{\sqrt{3}}\hat{k}$
  • B
    $\hat{i} + \frac{3}{2}\hat{j} + \frac{1}{2}\hat{k}$
  • C
    $\frac{2}{\sqrt{2}}\hat{i} + \frac{3}{\sqrt{2}}\hat{j} + \frac{1}{\sqrt{2}}\hat{k}$
  • D
    $\frac{2\sqrt{7}}{\sqrt{14}}\hat{i} + \frac{3\sqrt{7}}{\sqrt{14}}\hat{j} + \frac{\sqrt{7}}{\sqrt{14}}\hat{k}$

Explore More

Similar Questions

The position vectors of $P$ and $Q$ are $5i + 4j + ak$ and $-i + 2j - 2k$ respectively. If the distance between them is $7$,then the value of $a$ will be:

The position vector of the point which divides the line segment joining the points with position vectors $2a - 3b$ and $3a - 2b$ internally in the ratio $2 : 3$ is:

$I$. Two non-zero,non-collinear vectors are linearly independent.
$II$. Any three coplanar vectors are linearly dependent.
Which of the above statements is/are true?

If the vectors $\hat{i}+2 \hat{j}+x \hat{k}$ and $y \hat{i}+6 \hat{j}+4 \hat{k}$ are collinear,then the values of $x$ and $y$ are respectively,

If $\vec{AB} = 3 \hat{i} + 5 \hat{j} + 4 \hat{k}$ and $\vec{AC} = 5 \hat{i} - 5 \hat{j} + 2 \hat{k}$ represent the sides of triangle $ABC$,then the length of the median through $A$ is

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo