Gujarati
3-1.Vectors
easy

$\mathop P\limits^ \to $तथा$(\mathop P\limits^ \to + \mathop Q\limits^ \to )$ एवं $(\mathop P\limits^ \to - \mathop Q\limits^ \to )$ के परिणामी के बीच कोण होगा

A

शून्य

B

${\tan ^{ - 1}}(P/Q)$

C

${\tan ^{ - 1}}(Q/P)$

D

${\tan ^{ - 1}}(P - Q)/(P + Q)$

Solution

(a) परिणामी $\overrightarrow R = \overrightarrow P + \overrightarrow Q + \overrightarrow P – \overrightarrow Q = 2\vec P$

$\overrightarrow P $ तथा $2\mathop P\limits^ \to $ के मध्य कोण शून्य होगा

Standard 11
Physics

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