If two normals to a parabola 
intersect at right angles, then the chord joining their feet passes through a fixed point whose co-ordinates are
a)
(
,0)
b)
c)
d)
None
If two normals to a parabola intersect at right angles, then the chord joining their feet passes through a fixed point whose co-ordinates are
a)
(,0)
b)
c)
d)
None
Question ID - 56089 | SaraNextGen Top Answer
If two normals to a parabola intersect at right angles, then the chord joining their feet passes through a fixed point whose co-ordinates are
a)
(,0)
b)
c)
d)
None
|
If two normals to a parabola |
|||||||
|
a) |
( |
b) |
|
c) |
|
d) |
None |
1 Answer
127 votes
Answer Key / Explanation : (b) -
(b)
Slope of normal at point 
and 
is 
and 
respectively
Equation of chord joining 
and 
is
Or 
But 
Chord 
is 
Or 
Which passes through the fixed point 
127 votes
Answer Link
127