| 1 |
The directrix of the parabola x<sup>2</sup> = -4ay is: |
- A. x = a
- B. x = -a
- C. y = a
- D. y = -a
|
| 2 |
Two circles of radius 3 cm and 4 cm touch each other externally. The distance between their centers is: |
- A. 1 cm
- B. 7cm
- C. 4cm
- D. 5cm
|
| 3 |
The radius of point circle is: |
|
| 4 |
The graph of the the parabola x<sup>2</sup> = 4ay lies in quadrant: |
- A. I and II
- B. III and IV
- C. II and III
- D. I and III
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| 5 |
The vertex of the parabola x<sup>2</sup> = -4ay is: |
- A. (a, 0)
- B. (0, 0)
- C. (0, -a)
- D. (0, a)
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| 6 |
If the cone is cut by a plane perpendicular to the axis of the cone, then the section is a / an: |
- A. Parabola
- B. Circular cone
- C. Ellipse
- D. Circle
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| 7 |
|
- A. x = 0
- B. y = -a
- C. y = 0
- D. y = -a
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| 8 |
The parabola y<sup>2</sup> = 4ax lies in quadrants: |
- A. I and II
- B. III and IV
- C. II and III
- D. I and IV
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| 9 |
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
|
| 10 |
If a circle and a line intersect in two points, then the line is called: |
- A. A chord
- B. A secant
- C. A diameter
- D. None of these
|
