| 1 |
If the focus lies on the y - axis with coordinates F(0, a) and directrix of the parabola is y = -a, then the equation of parabola is: |
- A. x<sup>2</sup> = 4ay
- B. -x<sup>2</sup>= 4ay
- C. -y<sup>2</sup>= 4ax
- D. y<sup>2</sup>= 4ax
|
| 2 |
The fixed point of the conic is called: |
- A. Directrix
- B. Vertex
- C. Focus
- D. None of these
|
| 3 |
The point of a parabola which is closest to the focus in the: |
- A. Directrix
- B. Vertex
- C. Focus
- D. Chord
|
| 4 |
The axis of the parabola x<sup>2</sup> = 4ay is: |
- A. x = 0
- B. x = -a
- C. y = 0
- D. y = -a
|
| 5 |
The set of all points in the plane that are equally distant from a fixed point is called a / an: |
- A. Circle
- B. Circular cone
- C. Ellipse
- D. Point circle
|
| 6 |
The conic is a parabola, if: |
- A. e = 1
- B. e > 1
- C. 0 < e < 1
- D. e = 0
|
| 7 |
The radius of circle x<sup>2</sup> + y<sup>2</sup> + ax + by + c = 0 is: |
|
| 8 |
The length of the latus rectum of the parabola y<sup>2</sup> = 4ax is: |
- A. a
- B. 4a
- C. 2a
- D. None of these
|
| 9 |
If the cutting plane is slightly tillted and cuts only one nappe of the cone, then the section is a / an: |
- A. Ellipse
- B. Circular cone
- C. Circle
- D. Point circle
|
| 10 |
A line through a point say P perpendicular to the tangent to the curve at P is called: |
- A. Straight line
- B. Tangent line
- C. Normal line
- D. None of these
|