Physics Objective Test No.11


      Multiple Choice Questions
1. A vector is described by magnitude as well as:
a) Angle
b)Distance
c) Direction
d) Height
2. Addition, subtraction and multiplication of scalars is done by:
a)Algebraic principles
b) Simple arithmetical rules
c) Logical methods
d) Vector algebra
3.The direction of a vector in a plane is measured with respect to two straight lines which are _______ to each other.
a) Parallel
b) Perpendicular
c) At an angle of 60o
d) Equal
4. A unit vector is obtained by dividing the given vector by:
a) its magnitude
b) its angle
c) Another vector
d) Ten
5. Unit vector along the three mutually perpendicular axes x, y and z are denoted by:
a) aˆ , bˆ , cˆ
b) iˆ , jˆ , kˆ
c) pˆ , qˆ , rˆ
d) xˆ , yˆ , zˆ
6. Negative of a vector has direction _______ that of the original vector.
a) Same as
b) Perpendicular to
c) Opposite to
d) Inclined to
7. There are _______ methods of adding two or more vectors.
a) Two
b) Three
c) Four
d) Five
8. The vector obtained by adding two or more vectors is called:
a) Product vector
b) Sum vector
c) Resultant vector
d) Final vector
9. Vectors are added according to:
a) Left hand rule
b) Right hand rule
c) Head to tail rule
d) None of the above
10. In two-dimensional coordinate system, the components of the origin are taken as:
a) (1, 1)
b) (1, 0)
c) (0, 1)
d) (0, 0)
Answer