NEET Physics Vector Magnitude MCQ Question with Solution

If vectors $\vec{A}$ and $\vec{B}$ are such that $|\vec{A} + \vec{B}| = |\vec{A} - \vec{B}|$ , then $|\vec{A} - \vec{B}|$ may be equated to

A

$\frac{\sqrt{3}}{2} |\vec{A}|$

B

$|\vec{A}|$

C

$\sqrt{2} |\vec{A}|$

D

$\sqrt{3} |\vec{A}|$

Correct Answer

Option B

Detailed Explanation

The condition $|\vec{A} + \vec{B}| = |\vec{A} - \vec{B}|$ implies that the vectors $\vec{A}$ and $\vec{B}$ are perpendicular. Therefore, $|\vec{A} - \vec{B}| = |\vec{A}|$ .

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NEET Physics Vector Magnitude MCQ Question

Correct Answer

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