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NCERT Solutions for class 12 Maths | Chapter 10 - Vector Algebra

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Free download in PDF Class 12 Maths Chapter 10 Vector Algebra Multiple Choice Questions and Answers for Board, JEE, NEET, AIIMS, JIPMER, IIT-JEE, AIEE and other competitive exams. MCQ Questions for Class 12 Maths with Answers were prepared based on the latest exam pattern. These short solved questions or quizzes are provided by Gkseries. These will help the students for preparation of their examination./p>

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(1) The points with position vectors (2. 6), (1, 2) and (a, 10) are collinear if the of a is
[A] -8
[B] 4
[C] 3
[D] 12
Answer: 3
(2)
[A] 1
[B] √3
[C] 0
[D] None of these
Answer: √3

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(3)
[A] 0
[B] π/2
[C] π/4
[D] π
Answer: 0
(4) If be two unit vectors and 0 is the angle between them, then is equal to
[A]
[B]
[C]
[D]
Answer:
(5) If ABCDEF is a regular hexagon then equals
[A] Zero
[B]
[C]
[D]
Answer:
(6) The angle between the vector is
[A] π/2
[B] π/4
[C] π/3
[D] 0
Answer: π/2
(7)
[A]
[B]
[C]
[D]
Answer:
(8) then the angle between
[A] π/2
[B] 0
[C] π/4
[D] π/6
Answer: π/2
(9) According to the associative lass of addition of addition of sector

[A]
[B]
[C]
[D]
Answer:
(10) If be the position vector of the points A, B and C respectively, then
[A] The A, B and C are collinear
[B] A, B and C are not colinear
[C]
[D] None of these
Answer: The A, B and C are collinear
(11)
[A] π/6
[B] π/3
[C] π/2
[D] 5π/2
Answer: π/3
(12) The projection of the vector on the line joining the points (3, 4, 2) and (5, 6,3) is
[A] 2/3
[B] 4/3
[C] –4/3
[D] 5/3
Answer: 4/3
(13)
[A] 8
[B] 7
[C] 4
[D] 2
Answer: 7
(14)
[A] 0
[B] 1
[C]
[D] 2
Answer:
(15)
[A] 0
[B] 1
[C]
[D]
Answer:
(16) Three points (2, -1, 3), (3, – 5, 1) and (-1, 11, 9) are
[A] Non-collinear
[B] Non-coplanar
[C] Collinear
[D] None of these
Answer: Collinear
(17) The points with position vectors are collinear if
[A] a = -40
[B] a = 40
[C] a = 20
[D] None of these
Answer: a = -40
(18) If O is origin and C is the mid point of A (2, -1) and B (-4, 3) then the value of is
[A]
[B]
[C]
[D]
Answer:
(19) If are three vectors such that and
[A] 0
[B] 1
[C] -19
[D] 20
Answer: -19
(20) The value of λ for which the vectors are parallel is
[A] 2/3
[B] 3/2
[C] 5/2
[D] –2/5
Answer: 2/3

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