3-1.Vectors
medium

$\overrightarrow A = \hat iA\,\cos \theta + \hat jA\,\sin \theta $ જે સદીશ છે બીજો સદીશ $\overrightarrow B $ જે $\overrightarrow A$ ને લંબ હોય તો .... થાય.  

A

$\hat i\,B\,\cos \theta + j\,B\sin \theta $

B

$\hat i\,B\,\sin \theta + j\,B\cos \theta $

C

$\hat i\,B\,\sin \theta - j\,B\cos \theta $

D

$\hat i\,B\,\cos \theta - j\,B\sin \theta $

Solution

(c)Dot product of two perpendicular vector will be zero.

Standard 11
Physics

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