A vector perpendicular to the vector (hat(i)+2hat(j)) and having magnitude 3sqrt(5) units is

A vector perpendicular to the vector (hat(i)+2hat(j)) and having magni

1.	A vector perpendicular to the vector (hat(i)+2hat(j)) and having magnitude 3sqrt(5) units is
Answer» `3HAT(i)+6ht(j)` `6hat(i)-3hat(j)` `4hat(i)-2hat(j)` `HAT(i)-2hat(j)` ANSWER :B