| 1 |
The focus of the parabola x2=-4ay is: |
- A. (-a , 0)
- B. (0, a)
- C. (0, -a)
- D. (a, 0)
|
| 2 |
The directrix of the parabola y<sup>2</sup> = 4ax is: |
- A. x = a
- B. x = -a
- C. y = a
- D. y = - a
|
| 3 |
|
- A. x = 0
- B. y = -a
- C. y = 0
- D. y = -a
|
| 4 |
In equation of circle, coefficient of each of x<sup>2</sup> and y<sup>2</sup> are: |
- A. Not equal
- B. Opposite in signs
- C. Equal
- D. None of these
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| 5 |
The equ. of directrix of the parabola y<sup>2</sup> = -4ax is: |
- A. x = a
- B. x = - a
- C. y = a
- D. y = -a
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| 6 |
Length of tangent from (a, 0) to the circle x<sup>2</sup> + y<sup>2</sup> + 2gx + 2fy + c = 0 is: |
- A.
- B. c
- C. 2g + 2f -c
- D. None
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| 7 |
A line segment whose end points lie on the circle is called a __________ of the circle. |
- A. Radius
- B. Chord
- C. Diameter
- D. None of these
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| 8 |
The axis of the parabola y<sup>2</sup> = -4ax is: |
- A. x = a
- B. x = 0
- C. y = a
- D. y = 0
|
| 9 |
The graph of the parabola x<sup>2</sup> = -4ay lies in quadrants: |
- A. I and II
- B. III and IV
- C. II and III
- D. I and III
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| 10 |
Two arcs of two different circles are congruent if: |
- A. The circles are congruent
- B. The corresponding central angles are congruent
- C. Both a and b
- D. None of the above
|