| 1 |
A force of 100 N makes on angle of 60<sup>o</sup>with y axis, its horizontal component is. |
- A. 50 N
- B. 60 N
- C. 70.7 N
- D. 86.6 N
|
| 2 |
Usually the x-axis is taken as |
- A. Vertical axis
- B. Horizontal axis
- C. +ve axis
- D. -ve axis
|
| 3 |
Maximum number of components of a vector may be |
- A. Infinite
- B. One
- C. two
- D. three
|
| 4 |
The dot product of two vectors A and B will be zero, if angle between A and B is |
- A. Zero
- B. 30<sup>o</sup>
- C. 90<sup>o</sup>
- D. 180<sup>o</sup>
|
| 5 |
Minimum number of unequal forces whose vector sum can be zero are. |
|
| 6 |
When a vector is multiplied by a (-)ve number its direction |
- A. Remains constant
- B. Reversed
- C. Change by 90°
- D. None of these
|
| 7 |
The direction of null vector can be |
- A. (+) ve
- B. (-) ve
- C. Arbitrary
- D. Zero
|
| 8 |
|
|
| 9 |
Dot product of vector with itself is. |
- A. Zero
- B. 2 A
- C. A<sup>2</sup>
- D. A
|
| 10 |
Direction of a vector in space requires |
- A. Two axis
- B. Three axis
- C. Four axis
- D. Both a and b
|
