1 |
|
|
2 |
|
|
3 |
The direction cosines of y-axis are |
1,0,0
0,1,0
0,0,1
1,1,1
|
4 |
|
|
5 |
Which of the vectors have opposite direction? |
Both A and B
|
6 |
|
|
7 |
The magnitude of a vector can never be |
Zero
Negative
Positive
Absolute
|
8 |
A vector of magnitude zero is called |
Position vector
Null vector
Free vector
None of these
|
9 |
Unit vector in the positive direction of x-axis is |
All
|
10 |
|
Free vector
Null vector
Unit vector
None of these
|
11 |
The conic is a parabola if |
e < 1
e > 1
e = 1
e = 0
|
12 |
The perpendicular bisector of any chord of a circle |
Passes through the centre of the cirle
Does not pass through the centre of the circle
May or may not pass through the centre of the cirlce
None of these
|
13 |
A line segment whose end points lie on a circle is called |
The secant of the circle
The arc of the circle
The chord of the circle
The circumference of the circle
|
14 |
The equation of the normal to the circle x2+ y2= 25 at(4, 3) is |
3x - 4y = 0
3x - 4y = 5
4x + 3y = 5
4x + 3y = 25
|
15 |
|
None of these
|