Find The Locus Of The Poles Of The Normal Of The Hyperbola .

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Question

Find the locus of the poles of the normal of the hyperbola .

Solution

Correct option is

(a2 + b2)2

Let (x1, y1) be the pole of the normal chord.

Equation of polar is .

But polar is a normal chord.

⇒ its equation is

                …. (2)

On comparing (1) and (2),

        

And 

Using  ,

we get

        

 

SIMILAR QUESTIONS

Q1

The equation of normal to the rectangular hyperbola xy = 4 at the point P on the hyperbola which is parallel to the line

2x – y = 5 is –

Q2

A tangent to the hyperbola  meets ellipse x2 + 4y2 = 4 in two distinct points. Then the locus of midpoint of this chord is –

Q3

From a point on the line y = x + c, c(parameter), tangents are drawn to the hyperbola  such that chords of contact pass through a fixed point (x1, y1). Then  is equal to –

Q4

If the portion of the asymptotes between centre and the tangent at the vertex of hyperbola  in the third quadrant is cut by the line  being parameter, then –

   

Q5

Find the eccentricity of the hyperbola whose latus rectum is half of its transverse axis.

Q6

For what value of c does not line y = 2x + c touches the hyperbola 16x2 – 9y2 = 144?

Q7

Determiner the equation of common tangents to the hyperbola  and .

Q8

Find the locus of the mid-pints of the chords of the circle x2 – y2 = 16, which are tangent to the hyperbola 9x2 – 16y2 = 144.

Q9

Obtain the equation of a hyperbola with coordinate axes as principal axes given that the distance of one of its vertices from the foci are 9 and 1 units.

Q10

Find the equation to the hyperbola of given transverse axes whose vertex bisects the distance between the center and the focus.