A null vector has no magnitude.(True//False)

The electric current has both magnitude and direction and hence a vector quantity. (True/False)

When a body moves with constant speed,it has no acceleration.(True / False)

A vector with magnitude zero is called a

A vector has both magnitude and direction. Does it mean that anything that has magnitude and direction is necessarily a vector ?The rotation of a body can be specified by the direction of the axis of rotation, and the angle of rotation about the axis. Does that make any rotation a vector ?

Answer the following ad true or false : Two vectors having same magnitude are collinear.

Answer the following as true or false. (i) vec a and -vec a are collinear. (ii) Two collinear vectors are always equal in magnitude. (iii) Two vectors having same magnitude are collinear. (iv) Two collinear vectors having the same magnitude

Centripetal acceleration has no particular direction. (true/false)

According to de-Brogile hypothesis matter has particle nature. (True/ false)

Two vectors having different magnitudes: