If left| {{{vec v}₁} + {{vec v}₂}} right| = left| {{{vec v}₁} - {{vec v}₂}} right| &nb

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3-1.Vectors

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If $\left| {{{\vec v}_1} + {{\vec v}_2}} \right| = \left| {{{\vec v}_1} - {{\vec v}_2}} \right|$ and ${{{\vec v}_1}}$ and ${{{\vec v}_2}}$ are finite, then

A

${{{\vec v}_1}}$ is parallel to ${{{\vec v}_2}}$

B

${{{\vec v}_1} = {{\vec v}_2}}$

C

$\left| {{{\vec v}_1}} \right| = \left| {{{\vec v}_2}} \right|$

D

${{{\vec v}_1}}$ and ${{{\vec v}_2}}$ are mutually perpendicular

Solution

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Standard 11

Physics

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