| 1 |
When a vector is multiplied by a (-)ve number its direction |
- A. Remains constant
- B. Reversed
- C. Change by 90°
- D. None of these
|
| 2 |
The angle between x-axis, y-axis and z-axis is |
- A. 45°
- B. 60°
- C. 75°
- D. 90°
|
| 3 |
Usually the x-axis is taken as |
- A. Vertical axis
- B. Horizontal axis
- C. +ve axis
- D. -ve axis
|
| 4 |
A vector is denoted by |
- A. Light face
- B. Bold face
- C. Both a and b
- D. None of these
|
| 5 |
Maximum number of components of a vector may be |
- A. Infinite
- B. One
- C. two
- D. three
|
| 6 |
The direction of null vector can be |
- A. (+) ve
- B. (-) ve
- C. Arbitrary
- D. Zero
|
| 7 |
Which is the example of vector quantity |
- A. Torque
- B. Speed
- C. Density
- D. Work
|
| 8 |
The resultant of two forces 3N and 4 N acting at right angle to each other is. |
- A. 5 N
- B. 6 N
- C. 1 N
- D. 7 N
|
| 9 |
Name the quantity which is a vector. |
- A. Speed
- B. Force
- C. Temperature
- D. Density
|
| 10 |
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>
|