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The resultant of two vectors vecP and ve...

The resultant of two vectors `vecP` and `vecQ` is `vecR`. If the magnitude of `vecQ` is doubled, the new resultant becomes perpendicular to `vecP`, then the magnitude of `vecR` is

A

`(P^(2)-Q)/(2PQ)`

B

`2(P+Q)/(P-Q)`

C

Q

D

`P/Q`

Text Solution

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The correct Answer is:
C
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