Resultant of two vectors of magnitudes P and Q is of magnitude 'Q'. If the magnitude of vecQis doubled now the angle made by new resultant with vecPis

Resultant of two vectors of magnitudes P and Q is of magnitude 'Q'. If

1.	Resultant of two vectors of magnitudes P and Q is of magnitude 'Q'. If the magnitude of vecQis doubled now the angle made by new resultant with vecPis
Answer» `30^@` `90^@` `60^@` `120^@` ANSWER :B