CBSE Class 12 Matrices Multiple Choice Questions with Answers. MCQ Questions Class 12 Matrices with Answers Is Prepared Based on Latest Exam Pattern. Students can solve NCERT MCQ questions Class 12 Matrices with Answers to know their preparation level.
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MCQ Questions Class 12 Matrices with Answers - Set - 5
Question 1:
A square matrix A = [aij]n×n is called a lower triangular matrix if aij = 0 for
(a) i = j
(b) i < j
(c) i > j
(d) None of these
Correct Answer – (B)
Question 2:
The number of all possible matrices of order 3 × 3 with each entry 0 or 1 is
(a) 18
(b) 512
(c) 81
(d) None of these
Correct Answer – (B)
Question 3:
If A is a square matrix such that A² = I, then (A – I)³ + (A + I)³ – 7A is equal to
(a) A
(b) I – A
(c) I + A
(d) 3 A
Correct Answer – (A)
Question 4:
If A is matrix of order m × n and B is a matrix such that AB’ and B’A are both defined, then order of matrix B is
(a) m × m
(b) n × n
(c) n × m
(d) m × n
Correct Answer – (D)
Question 5:
The matrix 
is a
(a) identity matrix
(b) symmetric matrix
(c) skew symmetric matrix
(d) None of these
Correct Answer – (B)
MCQ Questions Class 12 Matrices With Answers
Question 6:
A square matrix A = [aij]n×n is called a diagonal matrix if aij = 0 for
(a) i = j
(b) i < j
(c) i > j
(d) i ≠ j
Correct Answer – (D)
Question 7:
For any two matrices A and B, we have
(a) AB = BA
(b) AB ≠ BA
(c) AB = 0
(d) None of these
Correct Answer – (D)
Question 8:
If A and B are matrices of same order, then (AB’ – BA’) is a
(a) skew symmetric matrix
(b) null matrix
(c) symmetric matrix
(d) unit matrix
Correct Answer – (A)
Question 9:
The matrix 
is a
(a) diagonal matrix
(b) symmetric matrix
(c) skew symmetric matrix
(d) scalar matrix
Correct Answer – (C)
Question 10:
If matrix A = [aij]2×2 where 
then A² is equal to
(a) I
(b) A
(c) O
(d) None of these
Correct Answer – (A)
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