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3-1.Vectors
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$ (\overrightarrow P + \overrightarrow Q ) $ અને $ (\overrightarrow P \times \overrightarrow Q ) $ વચ્ચે ખૂણો કેટલો હશે?
A
0
B
$ \frac{\pi }{2} $
C
$ \frac{\pi }{4} $
D
$ \pi $
Solution
(b)Vector$(\vec P + \vec Q)$ lies in a plane and vector $(\vec P \times \vec Q)$ is perpendicular to this plane i.e. the angle between given vectors is $\frac{\pi }{2}$.
Standard 11
Physics
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