Vectors which acts along the same line are called _____________

(a)

parallel

(b)

anti-parallel

(c)

neither (a) nor (b)

(d)

both (a) and (b)

What is the resultant vectors, when 2 vectors are at right angles to each other?

(a)

\(R=\sqrt{P^2+Q^2}\)

(b)

R = P + Q

(c)

R = P - Q

(d)

\(R=\sqrt \frac{P}{Q}\)

Resultant of the 2 vector is maximum when angle between them is _____________

(a)

90°

(b)

180°

(c)

0°

(d)

270°

Two vectors act along the mutually perpendicular directions are called______vectors.

(a)

equal

(b)

opposite

(c)

orthogonal

(d)

orthogonal unit

The dot product of two vectors is _____________

(a)

commutative

(b)

associative

(c)

unit-commutative

(d)

none of the three