The resultant of two vectors vec(P) and vec(Q) is vec(R). If the magnitude of vec(Q) is doubled, the new resultant becomes perpendicular to vec(P), then the magnitude of vec(R) is

The resultant of two vectors vec(P) and vec(Q) is vec(R). If the magni

1.	The resultant of two vectors vec(P) and vec(Q) is vec(R). If the magnitude of vec(Q) is doubled, the new resultant becomes perpendicular to vec(P), then the magnitude of vec(R) is
Answer» <P>`(P^(2) - Q)/(2PQ)` `(P+Q)/(P-Q)` Q `(P)/(Q)` ANSWER :C