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A is a point on the parabola y^2=4a x . ...

`A` is a point on the parabola `y^2=4a x` . The normal at A cuts the parabola again at point `Bdot` If `A B` subtends a right angle at the vertex of the parabola, find the slope of `A Bdot`

A

`(2a,2sqrt2a)`

B

`(-2a,2sqrt2a)`

C

`(2sqrt2a, 2a)`

D

`(2sqrt2a, -2a)`

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MCGROW HILL PUBLICATION-PARABOLA-EXERCISE LEVEL-1 (single correct answer type questions )
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  13. Equation of a family of circle passing through the extremities of the ...

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  14. A triangle ABC is inscribed in the parabola y^(2)=4x such that A lies ...

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  15. P is a point on the parabola y^(2)=4ax whose ordinate is equal to its ...

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  16. The lacus of the middle points of the chords of the parabola y^(2)=4ax...

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  18. Locus of the point of intersection of the normals to the parabola y^(2...

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  19. The equation of the common tangent to the parabola y=x^2 and y=-(x-2)^...

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