EASY
JEE Main
IMPORTANT
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The length of the latus rectum of a parabola, whose vertex and focus are on the positive x-axis at a distance R and S(>R) respectively from the origin, is :

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Important Questions on Parabola

MEDIUM
JEE Main
IMPORTANT
A tangent line L is drawn at the point 2, -4 on the parabola y2=8x. If the line L is also tangent to the circle x2+y2=a2, then a is equal to                       .
EASY
JEE Main
IMPORTANT
Consider the parabola with vertex 12, 34 and the directrix y=12. Let P be the point where the parabola meets the line x=-12. If the normal to the parabola at P intersects the parabola again at the point Q. then (PQ)2 is equal to :
HARD
JEE Main
IMPORTANT
Let the tangent to the parabola S:y2=2x at the point P2,2 meet the x-axis at Q and normal at it meet the parabola S at the point R. Then the area (in sq. units) of the triangle PQR is equal to:
HARD
JEE Main
IMPORTANT
If the point on the curve y2=6x, nearest to the point 3,32 is (α,β), then 2(α+β) is equal to _________.
EASY
JEE Main
IMPORTANT
Let a parabola P be such that its vertex and focus lie on the positive x-axis at a distance 2 and 4 units from the origin, respectively. If tangents are drawn from O(0,0) to the parabola P which meet P at S and R, then the area (in sq. units) of ΔSOR is equal to :
EASY
JEE Main
IMPORTANT
If the three normals drawn to the parabola, y2=2x pass through the point a,0, a0, then a must be greater than :
MEDIUM
JEE Main
IMPORTANT
Let C be the locus of the mirror image of a point on the parabola y2=4x with respect to the line y=x. Then the equation of tangent to C at P2,1 is :
MEDIUM
JEE Main
IMPORTANT
Let L be a tangent line to the parabola y2=4x-20 at 6, 2. If L is also a tangent to the ellipse x22+y2 b=1, then the value of b is equal to :