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If a focal chord of the parabola be at a...

If a focal chord of the parabola be at a distanced from the vertex, then its length is equal to

A

`(2a^2)/d`

B

`a^2/d^2`

C

`(4a^3)/d^2`

D

`d^2/a`

Text Solution

Verified by Experts

The correct Answer is:
C
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ML KHANNA-THE PARABOLA -Problem Set (2) (MULTIPLE CHOICE QUESTIONS)
  1. If PSQ is focal chord of the parabola y^2 = 8x such that SP=6, then th...

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  2. If A1 B2 and A2 B2 are two focal chords of the parabola y^2 = 4ax the...

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  3. If a focal chord of the parabola be at a distanced from the vertex, th...

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  4. Tangents at the extremities of a focal chord of a parabola intersect o...

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  5. A circle drawn on any focal AB of the parabola y^(2)=4ax as diameter c...

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  6. The tangents at the points (at1^2,2at1), (at2^2, 2at2) on the parabola...

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  7. If two tanents drawn from a point P to the parabola y^2 = 4x are at ri...

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  8. If y+b=m1 (x+ a) and y+b=m2 (x+ a) are two tangents to the parabola y^...

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  9. Any two perpendicular tangents to a parabola intersect on the

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  10. A chord of the parabola y^2 = 4ax subtends a right angle at the verte...

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  11. The angle between tangents to the parabola y^2 = 4ax at the point wher...

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  12. If P(at1^2,2at1)and Q(at2^2,2at2) are two variablé points on the curv...

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  13. If the point P(4, -2) is the one end of the focal chord PQ of the para...

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  14. If (2,-8) is at an end of a focal chord of the parabola y^2 = 32x, the...

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  15. The angle between the tangents drawn from the origin to the paraboala ...

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  16. Angle between tangents drawn from the point (1, 4) to the parabola y^2...

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  17. Two tangents are drawn from the point (-2, - 1) to the parabola y^2 = ...

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  18. Any tangent to a parabola y^2 = 4ax and perpendicular to it from the f...

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  19. The two parabolas y^(2)=4x" and "x^(2)=4 intersect at a point P, whose...

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  20. Consider a circle with its centre lying on the focus of the parabola, ...

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