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3-1.Vectors
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સદિશ $\overrightarrow A $ ની દિશા ઉલટાવવામાં આવે છે, તો $\Delta \overrightarrow A $ અને $\left| {\Delta \overrightarrow A } \right|$ મેળવો. 

Option A
Option B
Option C
Option D

Solution

ધારો કે, $\overrightarrow{A_{1}}=\vec{A}$ અને $\overrightarrow{A_{2}}=-\vec{A}$

$(i)$

$\Delta \overrightarrow{ A }=\overrightarrow{ A _{2}}-\overrightarrow{ A _{1}}$

$=-\overrightarrow{ A }-\overrightarrow{ A }$

$=-2 \overrightarrow{ A }$

$(ii)$

$|\Delta \overrightarrow{ A }|=|-2 \overrightarrow{ A }|=2 A$

Standard 11
Physics

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