Mathematics MCQS for class 12 with Answers Chapter 7

If i & j are two unit vectors then i x j=

1

0

-1

2i x j – k =

0

1

-2

2

Two vector are ________ if and only if they are non-zero scalar multiple of each other

None of these

Equal

Parallel

Perpendicular

[k i j] =

-2

0

-1

1

The vectors lying in the same plane are called.

Collinear vectors

Perpendicular vectors

Coplaner vectors

Parallel vectors

If a x b =0 and a . b = then

a & b are perpendicular

a & b are parallel

Either a=0 or b=0

Both a & b are non-zero

j x k =

0

– i

1

The non-zero vectors a and b are parallel of a x b =

-1

0

ab

1

For a unit vectori, i.i=

0

2

-1

1

For two vectors i & j, we have: i.j=

2

1

-1

0