Mathematics MCQS for class 12 with Answers Chapter 7

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Mathematics MCQS for class 12 with Answers


j . k x i equals
j
i
k
1

Two non-zero vectors u and v are perpendicula if and only if u.v is equal to
None of these
1
2
0

The dot product of unit vector i with unit vector j is
2
3
0

Two vectors are equal if they
Area parallel to each other and have same direction
Passes through the same point
Have equal magnitude and have same direction
Are parallel to each other

A physical quantity that can be specified by a number along with unit is called:
Scalar
Variable
Vector
Constant

The direction cosine of x-axis are
(0, 0, 1)
(1, 0, 0)
(1, 1, 0)
(1, 0, 1)

if the angle
Parallel
Collinear
Both(b)&(c)
Perpendicular

Which of the following is a vector quantity
Distance
Work
Temperature
Displacement

If a & b are vectors along two adjacent sides of a parallelogram then area of a parallelogram is:
1/2 |a x b|
a . b
|a| . |b|
|axb|

Dot product of two vectors is
Not defined
Commutative
Associative
Imaginary

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