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The equation of the parabola whose verte...

The equation of the parabola whose vertex and focus lie on the axis of `x` at distances `a` and `a_1` from the origin, respectively, is (a) `y^2-4(a_1-a)x` (b) `y^2-4(a_1-a)(x-a)` (c) `y^2-4(a_1-a)(x-a)` (d) ` n o n e `

A

`y^2=4(a_1-a)x`

B

`y^2=4(a_1-a)(x-a)`

C

`y^2=4(a_1-a)(x-a_1)`

D

`y^2=4aa_1x`

Text Solution

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The correct Answer is:
B
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ARIHANT MATHS ENGLISH-PARABOLA-Exercise (Single Option Correct Type Questions)
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  11. If the normals to the parabola y^2=4a x at P meets the curve again at ...

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  12. The normal to the parabola y^(2)=4ax at three points P,Q and R meet at...

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  14. The largest value of a for which the circle x^2+y^2=a^2 falls totally ...

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  15. From a point (sintheta,costheta), if three normals can be drawn to the...

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  16. If two different tangents of y^2=4x are the normals to x^2=4b y , then...

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  17. The shortest distance between the parabolas 2y^2=2x-1 and 2x^2=2y-1 is...

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  18. Normals at two points (x1y1)a n d(x2, y2) of the parabola y^2=4x meet ...

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