| 1 |
Which are the following triples can be direction angles of a single vector: |
- A. 45°,45°,60°
- B. 30°,45°,60°
- C. 45°,60°,60°
- D. 30°,30°,30°
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| 2 |
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| 3 |
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- A. Scalar
- B. Free vector
- C. Unit vector
- D. Null vector
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| 4 |
If any two vectors of scalar triple product are equal, then its value is equal to: |
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| 5 |
A null vector is defined as a vector whose magnitude is: |
- A. 1
- B. 2
- C. 0
- D. None of these
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| 6 |
The law of parallelogram of addition was used by Aristotle to describe the combined action of : |
- A. One force
- B. Two forces
- C. Three forces
- D. Four forces
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| 7 |
The cross product or vector product of two vectors is defined: |
- A. Only in plane
- B. Only in space
- C. Both a and b
- D. None of these
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| 8 |
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| 9 |
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- A. Volume of the tetrahedron
- B. Volume of the parallelepiped
- C. Volume of the triangle
- D. None of these
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| 10 |
Which of the following is not a vector quantity ? |
- A. Weight
- B. Mass
- C. Force
- D. Velocity
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