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In vector diagram shown in figure where ...

In vector diagram shown in figure where `(vecR)` is the resultant of vectors `(vecA) and (vecB)`.

If `R= (B)/(sqrt2)`, then value of angle `theta` is :

A

`30^(@)`

B

`45^(@)`

C

`60^(@)`

D

`75^(@)`

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The correct Answer is:
B
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