The angle between two vectors $A$ and $B$ is $\theta$. Vector $R$ is the resultant of the two vectors. If $R$ makes an $\frac{\theta}{2}$ with $A$, then

$\mathrm{A}=\frac{\mathrm{B}}{2}$

NEET UG PHYSICS MCQ: MOTION IN PLANE

1 Medium

1 of 1

Analyzing +4 | -1

The angle between two vectors

A

and

B

\theta

. Vector

R

is the resultant of the two vectors. If

R

makes an

\frac{\theta}{2}

with

A

, then

View answer and explanation

Correct option: C

\mathrm{A}=\mathrm{B}

Option C (

\mathrm{A}=\mathrm{B}

) is correct because if the resultant R makes an angle of

\theta/2

with A, then the magnitudes of A and B must be equal.

Practice All Chapter MCQs →

\mathrm{\vec a}\,and\,\mathrm{\vec b}

\mathrm{\vec a}\,and\,\mathrm{\vec b}

\overrightarrow P \,\,.\,\,\overrightarrow Q = 0\,and\,\overrightarrow P \,\, \times \,\,\overrightarrow Q = 0

\overrightarrow Q \,and\,\overrightarrow R

\vec{A}=3 \hat{i}+4 \hat{j}

\vec{B}=6 \hat{i}+8 \hat{j}

A

B

\overrightarrow{\mathrm{A}}

\overrightarrow{\mathrm{B}}

{\cot ^{ - 1}}\left( 2 \right)