Published by:
CGP EDU Academic Team
Published on: August 14, 2026
The length of the subnormal to the parabola 
at any point is equal to 
. Find 
.
Text Solution
Verified by ExpertsThe correct answer is:
2
2
Let co-ordinates of 
is 
Equation of normal at point 
is 
This normal cuts 
-axis at 
Putting 
; we get
or 
or 
or 
So, 
and 
Length of subnormal 
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