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Vector vec(a) is increased by Delta vec...

Vector `vec(a)` is increased by ` Delta vec(a)` . If increment in magnitude of `vec(a)` is greater than magnitude of increment vector then angle between `vec(a) ` and ` Delta vec(a)` is :

A

greater than ` pi //6`

B

exactly ` pi //6`

C

exactly ` pi //2`

D

`phi`

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The correct Answer is:
D
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ANURAG MISHRA-DESCRIPTION OF MOTION-Level-1
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