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Vector Algebra question

2024 · 31 Jan · Shift 2 · Q67

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JEE Main
Physics
Vector Algebra
2024 · 31 Jan · Shift 2 · Q67

Vector Algebra question

2024 · 31 Jan · Shift 2 · Q67

JEE MainPhysicsVector AlgebraMCQ+4 / −1

If two vectors

\vec{A}

and

\vec{B}

having equal magnitude

R

are inclined at angle

\theta

, then

A
$|\vec{A}+\vec{B}|=2 R \cos \left(\frac{\theta}{2}\right)$
B
$|\vec{A}-\vec{B}|=2 R \cos \left(\frac{\theta}{2}\right)$
C
$|\vec{A}-\vec{B}|=\sqrt{2} R \sin \left(\frac{\theta}{2}\right)$
D
$|\vec{A}+\vec{B}|=2 R \sin \left(\frac{\theta}{2}\right)$

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