We have compiled the MCQ Questions for Class 12 Maths Chapter 10 Vector Algebra with Answers Pdf free download covering the entire syllabus for JEE and Boards. Practice MCQ Questions for Class 12 Maths with Answers on a daily basis and score well in exams. Refer to the Vector Algebra Class 12 MCQs Quiz Questions with Answers here along with a detailed explanation

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Vector Algebra Class 12 MCQs Questions with Answers

MCQ Questions for Class 12 Maths Chapter 9 Vector Algebra with Answers

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1. Direction cosines

 are tangents of Direction angles

 are cotangents of Direction angles

 are sines of Direction angles

 are cosines of Direction angles

2. Magnitude of the vector

 √3

 1

 0.5

 1.5

3.

 10

 -10

 15

 -15

4.

 5

 10

 13

 16

5. A point from a vector starts is called ____ and where it ends is called its ____

 terminal point, end point.

 initial point, terminal point

 Origin, end point

 initial point, end point

6.

 0

 -1

 1

 2

7.

 One

 Two

 Three

 Infinite

8.

 Isosceles triangle

  Right triangle

 Scalene triangle

 Equilateral triangle

9. Unit Vector is

 A vector whose direction angle β is unity

 A vector whose direction angle γ is unity

 A vector whose direction angle α is unity

 A vector whose magnitude is unity

10.

 [0, 8]

 [-12, 8]

 [0, 12]

 [8, 12]

11. If a, b, c and d are the position vectors of the points A, B, C and D such that a + c = b + d, then ABCD is a​

 Trapezium

 Rectangle

 Square

 Parallelogram

12. The ratio in which 2x + 3y + 5z = 1 divides the line joining the points (1, 0, -3) and (1, -5, 7) is

 5 : 3

 3 : 2

 2 : 1

 1 : 3

13.

 (2, 2, -3)

 (3, 2, -4)

 (4, 2, -1)

 (3, 3, -4)

14. If l, m and n are direction cosines of the position vector OP the coordinates of P are

 lr, mr and nr

 l, mr and nr

 lr, m and nr

 lr, mr and n

15.

 8

 7

 9

 12

16. Three points (2, -1, 3), (3, – 5, 1) and (-1, 11, 9) are

 Non-collinear

 Non-coplanar

 Collinear

 None of these

17.

 6

 -6

 2

 -2

18.

 -8

 4

 3

 12

19.

 ±4

 ±3

 ±5

 ±6

20.

 0

 1

 -19

 38

 Loading …

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