The dot product of two non-zero vectors and is zero

MATHEMATICS · Single correct · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

The dot product of two non-zero vectors

\vec P

and

\vec Q

is zero. What does this imply about the angle

\phi

between them? (a)

0^{\circ}

(b)

180^{\circ}

(c)

90^{\circ}

(d)

45^{\circ}