The resultant of two 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

The resultant of two vecP and vecQ is vecR. If the magnitude of vecQ i

1.	The resultant of two 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
Answer» <P>`(P^(2)-Q)/(2PQ)` `(P+Q)/(P-Q)` Q `(P)/(Q)` Answer :C