The velocity vector at a point in a fluid flow is given by 5i + 12j. The unit vector which is perpendicular to the streamline passing through the point is:

(A) (?12i + 5j)/13
(B) (?12i ? 5j)/13
(C) (5i + 12j)/13
(D) (?5i + 12j)/13


Physics & Space Science

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