If the major axis of an ellipse is 3 times its minor axis, then its eccentricity is
2/3
√2/3
2√2/3
4√2/3
The equation of directrix of parabola y2 = 12 x is
3
-3
4
-4
The equation of normal at the point ( 0 , 3) of the ellipse 9x2 + 5y2 = 45 is.
y - 3 = 0
y + 3 = 0
x - axis
y - axis
The tangents drawn at the extremities of a focal chord of a parabola.
Are parallel
Intersect on the directrix
Intersect at angle of 45o
Intersect on the tangent at the vertex
The length of latus rectum of parabola y2 = 12x is
12
1
The distance from the centre of the ellipse to one of the foci and one of the vertices of the ellipse is called
Eccentricity
Ellipse
Focal length
None of these
The vertex of the parabola (y - 2)2 = 16 (x - 1) is
(2 , 1)
(1 , -2)
(-1, 2)
(1 , 2)
The focus of the parabola y2 - 8x - 32 = 0 is
(-2, 0)
(0 , 2)
(4 , 0)
(2 , 0)
The distance between the foci of an ellipse is 16 and eccentricity is 1/2.The length of the major axis of ellipse is
8
64
16
32
The eccentricity of the ellipse 4x2 + 9y2 = 36 is
1/2√3
1/√3
√5/3
√5/6