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Two vectors of equal magnitudes have a r...

Two vectors of equal magnitudes have a resultant equle to either of them, than the angel between them will be

A

`30^@`

B

`120^@`

C

`60^@`

D

`150^@`

Text Solution

Verified by Experts

The correct Answer is:
B
`R = sqrt(A^2 +A^2 + 2AA cos theta)`
` theta =120^@.`
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