JEE Advanced
2025
MSQ
Let $P\left(x_1, y_1\right)$ and $Q\left(x_2, y_2\right)$ be two distinct points on the ellipse
$ \frac{x^2}{9}+\frac{y^2}{4}=1 $
such that $y_1>0$, and $y_2>0$. Let $C$ denote the circle $x^2+y^2=9$, and $M$ be the point $(3,0)$.
Suppose the line $x=x_1$ intersects $C$ at $R$, and the line $x=x_2$ intersects C at $S$, such that the $y$-coordinates of $R$ and $S$ are positive. Let $\angle R O M=\frac{\pi}{6}$ and $\angle S O M=\frac{\pi}{3}$, where $O$ denotes the origin $(0,0)$. Let $|X Y|$ denote the length of the line segment $X Y$.
Then which of the following statements is (are) TRUE?
JEE Advanced
2024
MCQ
Consider the ellipse $\frac{x^2}{9}+\frac{y^2}{4}=1$. Let $S(p, q)$ be a point in the first quadrant such that $\frac{p^2}{9}+\frac{q^2}{4}>1$. Two tangents are drawn from $S$ to the ellipse, of which one meets the ellipse at one end point of the minor axis and the other meets the ellipse at a point $T$ in the fourth quadrant. Let $R$ be the vertex of the ellipse with positive $x$-coordinate and $O$ be the center of the ellipse. If the area of the triangle $\triangle O R T$ is $\frac{3}{2}$, then which of the following options is correct?
JEE Advanced
2023
MSQ
Let $T_1$ and $T_2$ be two distinct common tangents to the ellipse $E: \frac{x^2}{6}+\frac{y^2}{3}=1$ and the parabola $P: y^2=12 x$. Suppose that the tangent $T_1$ touches $P$ and $E$ at the points $A_1$ and $A_2$, respectively and the tangent $T_2$ touches $P$ and $E$ at the points $A_4$ and $A_3$, respectively. Then which of the following statements is(are) true?
JEE Advanced
2022
MCQ
Consider the ellipse
$$
\frac{x^{2}}{4}+\frac{y^{2}}{3}=1
$$
Let $H(\alpha, 0), 0<\alpha<2$, be a point. A straight line drawn through $H$ parallel to the $y$-axis crosses the ellipse and its auxiliary circle at points $E$ and $F$ respectively, in the first quadrant. The tangent to the ellipse at the point $E$ intersects the positive $x$-axis at a point $G$. Suppose the straight line joining $F$ and the origin makes an angle $\phi$ with the positive $x$-axis.
| List-I |
List-II |
| (I) If $\phi=\frac{\pi}{4}$, then the area of the triangle $F G H$ is |
(P) $\frac{(\sqrt{3}-1)^{4}}{8}$ |
| (II) If $\phi=\frac{\pi}{3}$, then the area of the triangle $F G H$ is |
(Q) 1 |
| (III) If $\phi=\frac{\pi}{6}$, then the area of the triangle $F G H$ is |
(R) $\frac{3}{4}$ |
| (IV) If $\phi=\frac{\pi}{12}$, then the area of the triangle $F G H$ is |
(S) $\frac{1}{2 \sqrt{3}}$ |
|
(T) $\frac{3 \sqrt{3}}{2}$ |
The correct option is:
JEE Advanced
2019
MSQ
Define the collections {E1, E2, E3, ...} of ellipses and {R1, R2, R3.....} of rectangles as follows :
${E_1}:{{{x^2}} \over 9} + {{{y^2}} \over 4} = 1$
R1 : rectangle of largest area, with sides parallel to the axes, inscribed in E1;
En : ellipse ${{{x^2}} \over {a_n^2}} + {{{y^2}} \over {b_n^2}} = 1$ of the largest area inscribed in ${R_{n - 1}},n > 1$;
Rn : rectangle of largest area, with sides parallel to the axes, inscribed in En, n > 1.
Then which of the following options is/are correct?
JEE Advanced
2018
MSQ
Consider two straight lines, each of which is tangent to both the circle x2 + y2 = (1/2) and the parabola y2 = 4x. Let these lines intersect at the point Q. Consider the ellipse whose centre is at the origin O(0, 0) and whose semi-major axis is OQ. If the length of the minor axis of this ellipse is $\sqrt 2 $, then which of the following statement(s) is (are) TRUE?
JEE Advanced
2018
MCQ
Let S be the circle in the XY-plane defined the equation x2 + y2 = 4.
Let P be a point on the circle S with both coordinates being positive. Let the tangent to S at P intersect the coordinate axes at the points M and N. Then, the mid-point of the line segment MN must lie on the curve
JEE Advanced
2016
MCQ
Let ${F_1}\left( {{x_1},0} \right)$ and ${F_2}\left( {{x_2},0} \right)$ for ${{x_1} < 0}$ and ${{x_2} > 0}$, be the foci of the ellipse ${{{x^2}} \over 9} + {{{y^2}} \over 8} = 1$. Suppose a parabola having vertex at the origin and focus at ${F_2}$ intersects the ellipse at point $M$ in the first quadrant and at point $N$ in the fourth quadrant.
The orthocentre of the triangle ${F_1}MN$ is
JEE Advanced
2016
MCQ
Let ${F_1}\left( {{x_1},0} \right)$ and ${F_2}\left( {{x_2},0} \right)$ for ${{x_1} < 0}$ and ${{x_2} > 0}$, be the foci of the ellipse ${{{x^2}} \over 9} + {{{y^2}} \over 8} = 1$. Suppose a parabola having vertex at the origin and focus at ${F_2}$ intersects the ellipse at point $M$ in the first quadrant and at point $N$ in the fourth quadrant.
If the tangents to the ellipse at $M$ and $N$ meet at $R$ and the normal to the parabola at $M$ meets the $x$-axis at $Q$, then the ratio of area of the triangle $MQR$ to area of the quadrilateral $M{F_1}N{F_2}$is
JEE Advanced
2015
MSQ
Let ${E_1}$ and ${E_2}$ be two ellipses whose centres are at the origin. The major axes of ${E_1}$ and ${E_2}$ lie along the $x$-axis and the $y$-axis, respectively. Let $S$ be the circle ${x^2} + {\left( {y - 1} \right)^2} = 2$. The straight line $x+y=3$ touches the curves $S$, ${E_1}$ and ${E_2}$ at $P, Q$ and $R$ respectively. Suppose that $PQ = PR = {{2\sqrt 2 } \over 3}$. If ${e_1}$ and ${e_2}$ are the eccentricities of ${E_1}$ and ${E_2}$, respectively, then the correct expression(s) is (are)
JEE Advanced
2014
MCQ
The common tangents to the circle ${x^2} + {y^2} = 2$ and the parabola ${y^2} = 8x$ touch the circle at the points $P, Q$ and the parabola at the points $R$, $S$. Then the area of the quadrilateral $PQRS$ is
JEE Advanced
2012
MCQ
The ellipse ${E_1}:{{{x^2}} \over 9} + {{{y^2}} \over 4} = 1$ is inscribed in a rectangle $R$ whose sides are parallel to the coordinate axes. Another ellipse ${E_2}$ passing through the point $(0, 4)$ circumscribes the rectangle $R$. The eccentricity of the ellipse ${E_2}$ is
JEE Advanced
2010
MCQ
Tangents are drawn from the point $P(3, 4)$ to the ellipse ${{{x^2}} \over 9} + {{{y^2}} \over 4} = 1$ touching the ellipse at points $A$ and $B$.
The coordinates of $A$ and $B$ are
JEE Advanced
2010
MCQ
Tangents are drawn from the point $P(3, 4)$ to the ellipse ${{{x^2}} \over 9} + {{{y^2}} \over 4} = 1$ touching the ellipse at points $A$ and $B$.
The equation of the locus of the point whose distances from the point $P$ and the line $AB$ are equal, is
JEE Advanced
2010
MCQ
Tangents are drawn from the point $P(3, 4)$ to the ellipse ${{{x^2}} \over 9} + {{{y^2}} \over 4} = 1$ touching the ellipse at points $A$ and $B$.
The orthocentre of the triangle $PAB$ is
JEE Advanced
2009
MSQ
An ellipse intersects the hyperbola $2{x^2} - 2{y^2} = 1$ orthogonally. The eccentricity of the ellipse is reciprocal of that of the hyperbola. If the axes of the ellipse are along the coordinate axes then
JEE Advanced
2009
MSQ
In a triangle $ABC$ with fixed base $BC$, the vertex $A$ moves such that
$$\cos \,B + \cos \,C = 4{\sin ^2}{A \over 2}.$$
If $a, b$ and $c$ denote the lengths of the sides of the triangle opposite to the angles $A, B$ and $C$, respectively, then
JEE Advanced
2009
MCQ
The normal at a point $P$ on the ellipse ${x^2} + 4{y^2} = 16$ meets the $x$- axis $Q$. If $M$ is the mid point of the line segment $PQ$, then the locus of $M$ intersects the latus rectums of the given ellipse at the points
JEE Advanced
2009
MCQ
The line passing through the extremity $A$ of the major axis and extremity $B$ of the minor axis of the ellipse ${x^2} + 9{y^2} = 9$ meets its auxiliary circle at the point $M$. Then the area of the triangle with vertices at $A$, $M$ and the origin $O$ is
JEE Advanced
2009
MCQ
Match the conics in Column I with the statements/expressions in Column II :
|
Column I |
|
Column II |
| (A) |
Circle |
(P) |
The locus of the point ($h,k$) for which the line $hx+ky=1$ touches the circle $x^2+y^2=4$. |
| (B) |
Parabola |
(Q) |
Points z in the complex plane satisfying $|z+2|-|z-2|=\pm3$. |
| (C) |
Ellipse |
(R) |
Points of the conic have parametric representation $x = \sqrt 3 \left( {{{1 - {t^2}} \over {1 + {t^2}}}} \right),y = {{2t} \over {1 + {t^2}}}$ |
| (D) |
Hyperbola |
(S) |
The eccentricity of the conic lies in the interval $1 \le x \le \infty $. |
|
|
(T) |
Points z in the complex plane satisfying ${\mathop{\rm Re}\nolimits} {(z + 1)^2} = |z{|^2} + 1$. |
JEE Advanced
2008
MSQ
Let $P\left( {{x_1},{y_1}} \right)$ and $Q\left( {{x_2},{y_2}} \right),{y_1} < 0,{y_2} < 0,$ be the end points of the latus rectum of the ellipse ${x^2} + 4{y^2} = 4.$ The equations of parabolas with latus rectum $PQ$ are :
JEE Advanced
2008
MCQ
Consider the two curves ${C_1}:{y^2} = 4x,\,{C_2}:{x^2} + {y^2} - 6x + 1 = 0$. Then,
JEE Advanced
2005
MCQ
The minimum area of triangle formed by the tangent to the ${{{x^2}} \over {{a^2}}} + {{{y^2}} \over {{b^2}}} = 1$ and coordinate axes is
JEE Advanced
2005
MCQ
Find the equation of the common tangent in the first quadrant to the circle $x^{2}+y^{2}=16$ and the ellipse $\frac{x^{2}}{25}+\frac{y^{2}}{4}=1$. Also find the length of the intercept of the tangent between the coordinate axes.
JEE Advanced
2004
MCQ
If tangents are drawn to the ellipse ${x^2} + 2{y^2} = 2,$ then the locus of the mid-point of the intercept made by the tangents between the coordinate axes is
JEE Advanced
2003
MCQ
The area of the quadrilateral formed by the tangents at the end points of latus rectum to the ellipse ${{{x^2}} \over 9} + {{{y^2}} \over 5} = 1,$ is
JEE Advanced
1999
MSQ
On the ellipse $4{x^2} + 9{y^2} = 1,$ the points at which the tangents are parallel to the line $8x = 9y$ are
JEE Advanced
1998
MCQ
If $P=(x, y)$, ${F_1} = \left( {3,0} \right),\,{F_2} = \left( { - 3,0} \right)$ and $16{x^2} + 25{y^2} = 400,$ then $P{F_1} + P{F_2}$ equals
JEE Advanced
1998
MCQ
The number of values of $c$ such that the straight line $y=4x + c$ touches the curve $\left( {{x^2}/4} \right) + {y^2} = 1$ is
JEE Advanced
1995
MCQ
The radius of the circle passing through the foci of the ellipse ${{{x^2}} \over {16}} + {{{y^2}} \over 9} = 1$, and having its centre at $(0, 3)$ is
JEE Advanced
1994
MCQ
The equation $2{x^2} + 3{y^2} - 8x - 18y + 35 = k$ represents
JEE Advanced
1994
MCQ
Let $E$ be the ellipse ${{{x^2}} \over 9} + {{{y^2}} \over 4} = 1$ and $C$ be the circle ${x^2} + {y^2} = 9$. Let $P$ and $Q$ be the points $(1, 2)$ and $(2, 1)$ respectively. Then