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Class 12 Mathematics Chapter 10 Vector Algebra Quiz 7 (25 MCQs)

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1. What is the term for the sum of two vectors?
2. What is a unit vector?
3. The cross product of two vectors A and B is another vector
4. What is the properties of null vector?
5. The cross product of vectors A and B is
6. If vector u=(4, -2) and vector v=(6, 12), then the vectors are
7. How does a vector in one dimension look like?
8. True or False, Equal vectors have same magnitude but different direction.
9. The vectors $10i+8j$ $2i+7j$
10. What is the result of the cross product of two vectors a and b?
11. If A = diagonal (3, 3, 3) then A$^{4}$ =
12. The physical quantities that follow simple laws of algebra are called ..... physical quantities
13. Given the line L:r = a + tb, where a = i+2j+3k and b= 2i-3j + k
14. The number of all possible matrices of order 3X3 with each entry 0 or 1
15. If u = <-2, 0>, find 3u.
16. What is the direction cosines of a vector?
17. The physical quantities which have both magnitude and direction are called .....
18. What is the result of the scalar product of two vectors?
19. Let $\overrightarrow{u}=\left(5, 2\right)$ $\overrightarrow{v}=\left(1, -1\right)$ $\overrightarrow{u}+\overrightarrow{v}$
20. $-\vec a$ $\vec a$
21. Is AB a unit vector?AB = < 1, .5, .5>
22. Find the direction angle for the vector <2, 7>
23. What is the result of the vector product of two parallel vectors?
24. If A, B are symmetric matrices of same order then AB-BA is a
25. Curl of Gradient of a Vector function is
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