The straight line joining any point 
on the parabola 
to the vertex and perpendicular from the focus to the tangent at 
intersect at 
then the equation of the locus of 
is
a)
b)
c)
d)
The straight line joining any point on the parabola to the vertex and perpendicular from the focus to the tangent at intersect at then the equation of the locus of is
a)
b)
c)
d)
Question ID - 55888 | SaraNextGen Top Answer
The straight line joining any point on the parabola to the vertex and perpendicular from the focus to the tangent at intersect at then the equation of the locus of is
a)
b)
c)
d)
|
The straight line joining any point |
|||||||
|
a) |
|
b) |
|
c) |
|
d) |
|
1 Answer
127 votes
Answer Key / Explanation : (b) -
(b)
Tangent at point 
is 
Line perpendicular to Eq. (i) passes through (
,0)
.png)
or 
or 
(ii)
Equation of 
or
(iii)
From Eqs. (ii) and (iii), eliminating 
, we get
Or 
127 votes
Answer Link
127