Q. Tangent at the vertex divides the distance between directrix and latusrectum in the ratio
A) $1:1$
B) $1:2$
C) Depends on directrix and focus
D) None of the above
Explanation
(a)
As we know that distance from vertex to the parabola is equal to the focus and directrix
[image:11_image6.emf]
$\therefore$ The tangent at the vertex divide in the ratio $1:1$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.