Published by:
CGP EDU Academic Team
Published on: August 23, 2026
A tangent and a normal are drawn at the point 
on the parabola 
, which meet the directrix of the parabola at the points 
and 
respectively. If 
is a point such that 
is a square, then 
is equal to:
Text Solution
Verified by ExpertsThe correct answer is:
A
Equation of tangent at 
equation of normal
thus 
equation of normal
POI of & 
is 
POI of & 
is 
Given AQBP is a sq.
(a,b)
Also PQ must be parallel to 
-axis thus
Thus 
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